Acquisition position
Monica Bratt · Art glass · Gomér & Andersson Norrköping
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Rödfärgad glasmassa. Höjd ca 19 cm.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 42% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 41% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 39% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 37% · 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 34% · 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
Anders Zorn Swedish, 1860-1920
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAnders Zorn Swedish, 1860-1920
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAlfred Leslie American, 1927-2023
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAlgimantas Kezys American, born Lithuania, 1928-2015
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDonald Roberts (American, 1923-2015) printed by Donald Roberts published by Tamarind Lithography Workshop (American, founded 1960)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHiratsuka Un'ichi (Japanese, 1895-1997)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEd Ruscha American, born 1937
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoFrank O. Gehry American, born Canada 1929-2025
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJoel Sternfeld American, born 1944
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAngela Kelly American, born Northern Ireland 1950
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJoel Sternfeld American, born 1944
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoItalian; possibly Venice
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 8623 | 68% | 700.0 SEK | identity 100%, material 45%, size 62%, title 93%, factory marks 45% |
| 3530 | 65% | 850.0 SEK | identity 100%, material 45%, size 62%, title 47%, factory marks 45% |
| 9489 | 56% | 654.0 SEK | identity 71%, material 45%, size 62%, title 52%, factory marks 45% |
| 4983 | 56% | 1803.0 SEK | identity 71%, material 45%, size 62%, title 52%, factory marks 45% |
| 10899 | 56% | 300.0 SEK | identity 71%, material 45%, size 62%, title 48%, factory marks 45% |
| 13167 | 56% | 350.0 SEK | identity 71%, material 45%, size 62%, title 47%, factory marks 45% |
| 7182 | 56% | 1500.0 SEK | identity 71%, material 45%, size 62%, title 49%, factory marks 45% |
| 7616 | 56% | 200.0 SEK | identity 71%, material 45%, size 62%, title 48%, 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.