Acquisition position
Karin Björquist · Ceramics and porcelain · Karlstad Hammarö Auktionsverk
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Höjd 19 cm.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 86% · Marks 25% · Material 40%
33% combined confidenceVisual 0% · Name 44% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 41% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 39% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 39% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 36% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 36% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 35% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 35% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 33% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 33% · Marks 25% · Material 40%
24% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Attributed to the workshop of Pierre Reymond French, 1513-after 1584
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 ChicagoHonoré Victorin Daumier French, 1808-1879
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 ChicagoAlberto Giacometti Swiss, 1901-1966
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 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 openArt Institute of ChicagoJames McNeill Whistler (American, 1834–1903)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Larsen Design Studio (American, 1958-1997) Produced by Jack Lenor Larsen, Inc. (American, 1952-1997) France
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoWucius Wong Chinese, born 1936
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 15606 | 65% | 350.0 SEK | identity 100%, material 45%, size 62%, title 66%, factory marks 45% |
| 1085 | 65% | 12500.0 SEK | identity 100%, material 45%, size 62%, title 54%, factory marks 45% |
| 16388 | 52% | 300.0 SEK | identity 60%, material 45%, size 62%, title 53%, factory marks 45% |
| 8351 | 52% | 250.0 SEK | identity 61%, material 45%, size 62%, title 44%, factory marks 45% |
| 8746 | 52% | 1000.0 SEK | identity 59%, material 45%, size 62%, title 45%, factory marks 45% |
| 8789 | 51% | 300.0 SEK | identity 59%, material 45%, size 62%, title 42%, factory marks 45% |
| 14050 | 50% | 299.0 SEK | identity 48%, material 45%, size 62%, title 63%, factory marks 45% |
| 16037 | 49% | 400.0 SEK | identity 45%, material 45%, size 62%, title 71%, factory marks 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.