Acquisition position
Current all in cost
340.0 SEK
Current bid or estimate200.0 SEK
Modelled discount75.6%
Liquidity score86%
Björn Wiinblad · Furniture and design · Roslagens Auktionsverk
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Vitglaserat porslin med blå dekor. Design: Björn Wiinblad Höjd ca 3 cm, diameter ca 11 cm.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 86% · Marks 25% · Material 0%
27% combined confidenceVisual 0% · Name 86% · Marks 25% · Material 0%
27% combined confidenceVisual 0% · Name 86% · Marks 25% · Material 0%
27% combined confidenceVisual 0% · Name 86% · Marks 25% · Material 0%
27% combined confidenceVisual 0% · Name 39% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 41% · Marks 25% · Material 0%
20% combined confidenceVisual 0% · Name 41% · Marks 25% · Material 0%
20% combined confidenceVisual 0% · Name 39% · Marks 25% · Material 0%
20% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 0%
20% combined confidenceVisual 0% · Name 37% · Marks 25% · Material 0%
19% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Toby Edward Rosenthal (American, 1848–1917)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAttributed to the workshop of Pierre Reymond French, 1513-after 1584
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMax Rosenthal (American, 1833-1918) after Henry Inman (American, 1801-1846)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMax Rosenthal American, 1833-1918
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoTiffany Studios (American, 1902–32) Corona, New York
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAlberto Giacometti Swiss, 1901-1966
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoRoy Lichtenstein American, 1923–1997
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoClaire Zeisler (American, 1903-1991) Chicago, Illinois, United States
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoStudio of François Boucher French, 1703-1770
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMax Rosenthal American, 1833-1918
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAlberto Giacometti Swiss, 1901–1966
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMilton Avery (American, 1885–1965)
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 7453 | 47% | 2000.0 SEK | identity 45%, material 45%, size 62%, title 44%, manufacturer labels 45% |
| 2285 | 47% | 2600.0 SEK | identity 45%, material 45%, size 62%, title 44%, manufacturer labels 45% |
| 595 | 47% | 1205.0 SEK | identity 45%, material 45%, size 62%, title 43%, manufacturer labels 45% |
| 5225 | 47% | 750.0 SEK | identity 45%, material 45%, size 62%, title 43%, manufacturer labels 45% |
| 9892 | 47% | 1300.0 SEK | identity 45%, material 45%, size 62%, title 42%, manufacturer labels 45% |
Automatic signature module
The local engine detects and isolates candidate regions, searches the trusted mark library and runs conservative signature forensics. Optional AI interprets unreadable regions and creates research queries without changing the forensic verdict.
The module runs during normal analysis when a local image is available.
Marks laboratory
110 independent methods generate cleanup variants, stroke and symbol descriptors, library matches, trust controls and conflict warnings.
Signature forensics
This does not declare a signature genuine. It measures fit against a multi-source reference set, confusing signers and natural variation.
Run mark matching first, then compare the questioned signature against a sufficiently broad trusted reference set.