
MOA Museum of Art National Treasure, the exact two-panel pair. Commons source photograph, marked PD-Art; MOA object record. Image rights status is flagged for release review.
Introduction
Contents
- Introduction
- Two trees with different weight
- Four details of the National Treasure
- The stream and the shape of the pair
- Gold and river: what the studies established
- What gold-ground research changed
- Silver and the dark river
- Signatures, dating and ownership
- Sōtatsu, Rinpa and the difference of a comparison
- Four separate works for comparison
- What the local images can and cannot show
- A method for looking
- Reader insights and discussion
- Books on Kōrin and Rinpa
On one gold screen a pale plum tree reaches in from the edge and keeps most of its trunk outside the field. On the other, a heavier red-flowering tree spreads across the surface. Between them runs a dark, swelling stream patterned with pale eddies. The composition of Ogata Kōrin's Red and White Plum Blossoms [1] is easy to remember and harder to explain. The two trees do not simply balance one another like a symmetrical emblem. Their different masses, branching and colours press against a river that widens towards the viewer, while a gold ground both separates and unites every form. The painting is an artwork on a pair of folding screens, an object with materials and a history, rather than a logo detached from its surface.
The work is held by the MOA Museum of Art in Atami. The museum catalogues it as a National Treasure, a pair of two-panel folding screens, each 156.0 × 172.2 cm, colour on gold-ground paper, Edo period eighteenth century. It considers the pair a likely late work of Kōrin, who died in 1716, without giving a secure calendar year for its completion. Japan's Cultural Heritage Online [2] records its National Treasure designation on 28 June 1956. Those basic facts matter, because another Japanese collection holds a differently attributed Red and White Plum pair with six panels per screen. A title alone cannot identify the object.
This page first reads the two halves and their river. It then follows the conservation question that made the gold and dark water the subject of laboratory study. The scientific evidence changes how we describe the materials, but it does not replace looking at the branches or explain every artistic decision. Related Kōrin plum works from the Met and Cleveland show what remains distinctive about the MOA screen; a later Hōitsu plum painting and a school-of-Kōrin lacquer object show its reception without confusing their makers. The artist home and biography place these screens within a larger practice across painting, textile and lacquer; the iris comparison examines another famous motif across two distinct pairs.
Object facts and evidence levels
| Question | What the records establish | What remains an interpretation or limit |
|---|---|---|
| Exact object | MOA Museum of Art Red and White Plum Blossoms [1], National Treasure; two-panel pair, each 156.0 × 172.2 cm | Do not substitute the different Idemitsu six-panel work [15] |
| Date | Edo period, eighteenth century; MOA considers it a late Kōrin work | No exact year is stated on the MOA object page |
| Signatures and provenance | Viewer-right red-plum screen “Seisei Kōrin”; viewer-left white-plum screen “Hokkyō Kōrin”; both with Hōshuku seal; formerly Tsugaru family | Signatures help place the work, but do not identify its first purchaser or original room |
| Gold | 2011 portable X-ray study [5] identifies gold leaf and overlapping foil joins | An earlier weak XRF signal alone was not proof of gold paint |
| River | MOA reports residual silver and silver sulfide in dark areas | MOA infers deliberate sulfur treatment; the making sequence is not observed directly |
| Production image | Separate Commons Public Domain Mark / PD-Art file [8] retained for local draft | MOA and Google site rights differ; resolve source-status conflict before live release |
Two trees with different weight
The trees face one another across water, yet they do not mirror one another. In the MOA Museum's exact-object account [1], the white tree's main trunk mostly disappears beyond the edge of its screen. The red tree expands through its own panel. This unequal treatment creates a relation rather than a mechanical pairing: one tree seems to have been encountered in passing, the other confronts the viewer. The difference is visible even from a distance, before individual flowers can be counted. It is also specific to this pair, not a formula by which every Kōrin plum painting must be read.
MOA says Kōrin drew plum blossoms without outlining each petal, a manner later admired as Kōrin-ume. Bud placement and the damp-looking modulation of the bark contribute to the design. The museum identifies tarashikomi, adding ink or colour into a still-wet passage, on the trunks. The technique can produce unexpected pools and mottling inside a controlled contour. Calling the painting “decorative” should not erase that material variability. A tree can be simplified into a memorable silhouette while its surface still asks for close examination. The strongest observation holds both scales together: the branch that drives the composition and the brushwork that makes it feel lived rather than cut out.
The red and white labels need care. They refer to the flower colours, not to two botanical species proven by a written identification on the work. Both screens depict plum trees; their colours carry the contrast. The flowers are not painted with equal size or density on both sides, and the viewer's attention changes with distance. From across a room, dark tree bodies and the river create the primary graphic rhythm. Up close, tiny petals and buds interrupt it. The latter are not optional decoration laid on top of a finished diagram: they are a reason why a severe composition can still feel like a season in progress.
The Cleveland Museum of Art's Plum Tree [11], an ink-on-silk hanging scroll dated about 1700, offers a useful separate comparison. Cleveland describes its white blossoms as reserves left in an ink wash, with old wood twisting out of sight and new growth emerging from a broken branch. That scroll is neither a preparatory drawing for the MOA pair nor one of its screens. It demonstrates a related Kōrin interest in cropped trunks, white blossoms and the visual force of an old tree in a narrower, vertical format. The Met's Flowers of Spring and Autumn [12], on wooden panels shortly after 1701, puts white plum on one side and later-season flowers on the other. Its medium and paired seasonal programme again differ from MOA's river-bound red and white confrontation.
The comparison prevents a common historical shortcut. One cannot say that Kōrin suddenly invented an interest in plum trees in a single late masterpiece. Yet neither can one assume that all earlier plum images were studies for this exact pair. The Cleveland and Met records identify separate accessions, materials, dates and purposes. Viewed in sequence, they show how a tree could function as an isolated ink subject, a seasonal half of a wooden-panel pair and, later, one actor in a large gold-and-silver drama. The MOA work becomes more distinctive when those alternatives remain visible.
Four details of the National Treasure
Select a numbered point, then enlarge the detail below. Every crop comes from the retained high-resolution Commons copy of the same exact pair.
1234White plum: a tree beyond the frame
The trunk is cropped by the screen edge. Its branches return across the gold toward the river.

Red plum: a heavier presence
A more complete trunk and expanding branches give this screen a different weight from the white side.

The river crop avoids the composite photograph’s dark join. Material findings come from the museum and studies.
The stream and the shape of the pair
The stream is not a thin boundary line. It swells as it moves down the composition and carries repeated, curling patterns. From the bottom edge, the eye can travel into the dark water and outward toward each tree. MOA calls attention to the subtle widening and the skilled water markings. The Agency for Cultural Affairs' designation record [2] describes red and white trees set against gold with a contrasting silver-water passage. This reading can be seen at a distance, but the silver is no longer simply a bright foil in a fresh painting. The current dark surface raises a material question: how much of its appearance was planned, and how much has changed over time?
That question should not flatten the painted river into a laboratory specimen. Its curves organise the two screens. The water is a space between trees and a shape that binds them: branches reach toward its sides, and its widening dark field makes their gold surroundings brighter by contrast. The two-panel format matters. Each screen folds once, and a pair can be set at slight angles. A flattened online image shows the relationship clearly but cannot reproduce every change in gold reflection as a person moves. It also cannot guarantee that the current darkness and colour balance match the work's appearance in Kōrin's own room.
Look at the white side first. The main trunk is cropped by the top and edge; thin branches return across the gold towards the stream. Follow a branch and it may lead the eye to a cluster of petals, then to the river's dark curve. On the red side, the stout trunk and its branches occupy more of the picture field, with flowers scattered around a weightier body. The river carries the gaze between the sides without turning the trees into equivalent symbols. This is an editorial close reading of the object image, not a claim that a surviving seventeenth- or eighteenth-century visitor left the same description.
There is another practical limit in the photograph used for the local draft. The 4,001-pixel composite places a dark vertical gap between screen images. That photographic separator is not itself a painted black channel through the river. Any annotation must mark the river away from that seam and avoid telling readers that the gap is part of Kōrin's design. The individual screens' physical relation and mounting may be better judged in front of the original or through MOA's own study materials, which are linked for research but not reproduced from its restricted website.
Gold and river: what the studies established
What gold-ground research changed
The gold ground became a subject of public debate because different analytical approaches did not initially yield the same level of certainty. In 2003–04, Tokyo's National Research Institute for Cultural Properties worked with MOA on non-destructive examination. Its 2005 X-ray fluorescence report [4] sets out measurements at 138 selected points, 74 on the red-plum screen and 64 on the white. It reported weak gold signals at some locations and did not detect certain metallic or pigment elements in sampled dark river and water-pattern areas under that instrument's conditions. The authors explicitly treated the results as grounds for further inquiry. A weak signal in a particular method and geometry is not by itself evidence that Kōrin painted a gold-coloured surface with no leaf.
In 2011, a team including researchers at Tokyo University of Science and MOA revisited the question with portable X-ray powder diffraction and X-ray fluorescence. Their peer-reviewed report in Bunseki Kagaku [5] explains the logic of the test. Gold crystals in a beaten foil acquire a preferred orientation. The measured orientation of the gold on the screens matched a foil comparison. Furthermore, the visible grid in the gold field showed regions with more than twice the measured gold thickness, consistent with places where adjacent leaves of foil overlap. The authors concluded that the ground is gold leaf, not gold paint. MOA's current collection entry [1] states that finding clearly.
The sequence is a lesson in how evidence improves. A 2005 XRF observation and a 2011 diffraction-and-line-scan conclusion need not be treated as two equal votes in an unresolved internet dispute. The later study addressed the earlier uncertainty with additional methods and a physical account of foil joins. The older report remains worth reading because it records what was measured and why the question arose. It also investigated colour in the flowers and trees. It did not give a permanent licence to repeat the claim that the gold ground was merely painted. The page's evidence timeline therefore labels 2005: question and limits, then 2011: gold-leaf result.
The scientific studies also have a specific scope. The 2011 crystal-orientation test establishes the manufacture of the gold ground, not the identity of every flower pigment, the name of a first owner, or whether Kōrin chose the final mounting. The 2005 report's fluorescence data point toward mercury in red petals and calcium in white petals; its authors discuss a mercury-containing red and likely calcium-carbonate shell white, while recognising that elemental XRF cannot detect all organic colourants. These are measured and inferred materials on the MOA object, not recipe instructions for a modern reproduction. An annotated detail of a petal can invite looking, but it cannot by itself reproduce the lab result.
Silver and the dark river
MOA's current object description [1] reports a 2011 survey using a digital microscope, portable X-ray fluorescence and portable powder X-ray diffraction. It says silver survives across the river and that silver sulfide was detected in black areas. On that basis, the museum infers that silver leaf was darkened with sulfur. This is much more precise than saying that Kōrin “painted a black river.” It also goes a step beyond the directly reported detection: the exact historical application of sulfur was not filmed, written on the screen or witnessed by the modern instruments. The inference should keep its attribution to the museum.
The river raises a question about time in two senses. It is painted as a flow that moves between the trees; its metal surface has also lived through centuries of chemical and environmental change. Silver can darken, and a present-day photograph gives a view of the surviving screen under present-day lighting. The museum's material conclusion helps explain why the water reads as dark against gold, but a reader should not assume that a single web photograph reproduces precisely how the silver looked in 1716. At the same time, it would be equally unwarranted to dismiss the black as accidental tarnish after MOA's reasoned sulphiding interpretation. The page shows the river detail with a short “detected / inferred / visible now” key so those forms of knowledge remain separate.
The technical literature has a longer trail. MOA and the Tokyo institute published a 2005 joint research book, National Treasure Red and White Plum Blossoms [6], recorded by CiNii with high-resolution images, X-ray studies and sections on the research history. Its full text was not obtained for this manuscript, so its bibliography can guide a reader without being cited for unexamined conclusions. The Tokyo institute's digital viewing station [7] provides detailed study material under MOA's permission, but the terms expressly restrict it to viewing and prohibit copying or printing. That source is valuable for research; it is not a source for our image files.
Signatures, dating and ownership
MOA records the signature on the viewer-right red-plum screen as Seisei Kōrin (青々光琳), and on the viewer-left white-plum screen as Hokkyō Kōrin (法橋光琳). Both bear the round red Hōshuku (方祝) seal. “Hokkyō” is an honorary title Kōrin received in 1701, so it is compatible with a mature career. It does not by itself identify 1714, 1715 or another precise year. MOA calls the work likely late and notes its passage through the Tsugaru family. The 2024 MOA exhibition [3] similarly speaks of Kōrin's final years. The stronger wording is “thought to be a late work,” not “painted on a proven day in his final year.”
The family's earlier history should not be turned into a provenance claim for this screen. Kōrin grew up in a Kyoto luxury-textile household, spent years in Edo, returned to Kyoto and worked across painting and craft. Those facts help us understand the range of materials he could command. They do not tell us that his father, a named Edo patron or his brother Kenzan commissioned Red and White Plum Blossoms. The biography explains the evidence for those life stages from Kyoto and Tokyo institutions. For the plum pair, the signed screens and MOA's record supply the relevant narrower facts. Its Tsugaru transmission is an afterlife, not a document for its first installation.
The National Treasure designation is another afterlife rather than a contemporary compliment Kōrin received. Cultural Heritage Online [2] dates the designation to 28 June 1956 and describes the work's contrast of red and white plum across silver water and gold field. That public status marks an assessment of historical and artistic importance in modern Japan. It does not make every later description of the painting equally exact. The website reader still needs the museum's object dimensions, correct orientation and a source for each material statement.
Sōtatsu, Rinpa and the difference of a comparison
MOA's object account says Kōrin studied and admired the earlier painter Tawaraya Sōtatsu, and that a red-and-white plum subject with flowing water has precedents. What is distinctive here, in MOA's view, is how the white trunk is cut off, the red tree fills its half and the stream's form binds the two. The museum's 2024 pairing [3] placed the plum screens alongside Kōrin's Wind and Thunder Gods, a close response to Sōtatsu's famous composition. The exhibition uses that comparison to ask how a painter learned from an older work and made a new one. The fact that the museum displayed them together in 2024 does not show that the plum and deity screens were originally a matched commission.
Rinpa is a useful retrospective name for an extended set of relations, not the label of a single school register signed by Kōrin. The National Diet Library's account of how books transmitted Rinpa [16] explains that Sakai Hōitsu gathered and published Kōrin designs in 1815, long after the painter's death. The Met's Hōitsu Bush Warbler in a Plum Tree [13] is a later, separately attributed example: a bird and spring blossoms on a tree with mottled tarashikomi bark. That work can help a viewer see how a later artist engaged with similar vocabulary. It is not a detail from Kōrin's MOA screen.
An even smaller object shows another stage of reception. The Met catalogues an Incense Box with Flowering Plum Tree [14] as school of Ogata Kōrin, nineteenth century. Its lacquer, mother-of-pearl and gold carry a plum design on a hand-held surface. The attribution is important: “school of” marks a different maker and later date. We can place its image beside the screens to discuss a motif crossing media while preserving that label. The same rule applied to the iris page: shared flowers and gold are not a reason to transfer one museum's accession or image to another object.
Four separate works for comparison
None of these images depicts the MOA National Treasure. Each has its own attribution, medium, accession and image rights.




What the local images can and cannot show
The local draft's exact MOA composition comes from a Wikimedia Commons file marked Public Domain / PD-Art [8], which is listed as a faithful reproduction of a public-domain two-dimensional artwork. The 4,001-pixel source was downloaded through Commons and retained with its hash and rights wording; the website derivative is 1,024 pixels wide, JPEG quality 80 at 144 dpi. Four details are cut from a retained 300-dpi-tagged working master at source pixel dimensions. The tag does not invent resolution. The red tree, white tree, river and gold are identified in the whole view and each crop; no crop from a comparison artwork is passed off as the National Treasure.
There is a rights-status conflict to resolve before live publication. MOA's policy [9] restricts reuse of its site content; Google Arts & Culture's record [10] names MOA in its rights field, while Commons labels the separate hosted reproduction public domain. The image was not taken from MOA's website or Google, and Commons' PD-Art assessment is documented. Nevertheless the institutional wording deserves an explicit release review, rather than an unqualified claim that MOA has granted this site a licence. The Met and Cleveland comparison images are drawn from records with direct Open Access or CC0 statements and have their own source captions.
The public image is also evidence of a particular photographic presentation. Its dark gap between the two screen views is a separator in the composite file, not a third black stripe painted down Kōrin's river. The annotated river crop stays within the picture area rather than calling that gap a material feature. A screen's reflective gold and silver, folds and scale cannot be fully experienced in a compressed image. The numbers on the annotation mark visible composition; the notes on gold leaf and silver sulfide are attributed to the museum and scientific studies, not derived from a JPEG's colour alone.
A method for looking
Begin with the MOA pair [1] as a single composition. Which tree seems to enter from outside the scene? Which occupies its own half? What does the river's widening do to the distance between them? Then inspect the red and white details without letting magnification erase the whole. The tree trunks' mottled passages, the near-outline-free petals and the gold foil's surface are different kinds of evidence from the large opposing shapes. The material timeline gives a further question: where does measured gold-leaf structure clarify something the eye sees, and where does it tell us what a picture alone cannot establish?
Next compare separate records: the Cleveland scroll [11] for reserved white flowers on inked silk, the Met's wooden panels [12] for plum as one season within a pair, and Hōitsu's later plum-and-bird scroll [13] for reception. Their dates, media and accession numbers must travel with their images. None is a substitute photograph of MOA's National Treasure. When the distinctions are kept, the famous river and two trees become a point of inquiry rather than a flattened emblem of “Japanese decoration.”
We can be precise about what remains open. The holdings, two-panel format, measurements, signatures, designation date and later gold-leaf result are documented. MOA's silver and sulfide observations support its interpretation of the river. The exact creation year, first commission and first room remain less secure in the cited records. An art page can give a rich account while preserving that uncertainty. Indeed the passage from an initial technical question to a stronger answer makes the work more compelling: a design celebrated for apparent simplicity has demanded careful looking from painters, historians, conservators and chemists for generations.
Reader insights and discussion
Tell us what you see in the MOA pair, and distinguish observation from an inference about materials.
Reader Insights
How does the cropped white trunk change the relation between the two screens?
What do the widening water and its repeated pattern do to the space between the trees?
Does the gold-leaf and silver-sulfide evidence alter what you notice?
Join the Conversation
Include the museum accession that prompted your observation.
References
- MOA Museum of Art, Red and White Plum Blossoms collection record. Exact pair, format, size, signatures, provenance, visual interpretation and 2011 scientific summary.
- Agency for Cultural Affairs, Cultural Heritage Online exact designation. National Treasure object and designation on 28 June 1956.
- MOA Museum of Art, 2024 Kōrin plum / Wind and Thunder Gods exhibition. Curatorial late-work and Sōtatsu comparison.
- Tokyo National Research Institute for Cultural Properties, Hayakawa et al., 2005 XRF report. 138 measurement points, findings and method limits.
- Abe et al., 2011, Bunseki Kagaku, gold-ground study. Peer-reviewed portable XRD/XRF evidence for gold leaf and foil overlaps.
- Cultural Research Institute and MOA, 2005 research-book bibliographic record. Book verified; not cited as fully read.
- Tokyo research institute's MOA-screen digital-viewing terms. Viewing-only restriction for research digital content.
- Wikimedia Commons, exact painting photograph. Public Domain Mark / PD-Art file and local image source.
- MOA Museum site policy. Restricted museum website image reuse.
- Google Arts & Culture exact-object record. Rights field names MOA; not the local image download source.
- Cleveland Museum of Art, Kōrin Plum Tree, 1983.10. Separate c. 1700 scroll, reserve technique, CC0 image.
- Metropolitan Museum of Art, Kōrin Flowers of Spring and Autumn, 2015.300.90a,b. Separate paired wooden panels with white plum; Open Access.
- Metropolitan Museum of Art, Hōitsu Bush Warbler in a Plum Tree, 2015.500.9.15. Later artist and motif; Open Access.
- Metropolitan Museum of Art, school of Kōrin Incense Box with Flowering Plum Tree, 29.100.719. Distinct later lacquer object; Open Access.
- Idemitsu Museum of Arts, its different Red and White Plum screens. Six-panel pair; attribution discussed separately.
- National Diet Library, Rinpa transmission through books. Hōitsu's 1815 Kōrin publications and later reception.
- Metropolitan Museum of Art, John T. Carpenter, Designing Nature. Verified published book recommendation; complete text not claimed read.





