Acquisition position
Current all in cost
425.0 SEK
Current bid or estimate350.0 SEK
Modelled discount43.3%
Liquidity score76%
Ulrica Hydman-Vallien · Art glass · Auktionshuset Thelin & Johansson
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Höjd 16 cm Kosta Boda Artist coll Ulrica HV 49925.
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 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 37% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 36% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 35% · 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 confidenceVisual 0% · Name 34% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 31% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 30% · Marks 25% · Material 40%
23% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Pierre Andrieu (French, 1821-1892)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEthel Henderson Canadian, 20th century
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEugène Delacroix (French, 1798-1863) printed by E. Ardit (French, active 1828-1834)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIsoda Koryusai Japanese, 1735-1790
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoKishi Ganku Japanese, 1749-1838
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEugène Delacroix French, 1798-1863
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEugène Delacroix French, 1798-1863
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoArtist Unknown Japanese, 18th century
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEugène Delacroix French, 1798-1863
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEugène Delacroix (French, 1798-1863) printed by Castille (French, 19th century)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIndia Northern India or Deccan
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEdvard Munch Norwegian, 1863-1944
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 8480 | 69% | 1700.0 SEK | identity 100%, material 45%, size 62%, title 95%, factory marks 45% |
| 8182 | 68% | 950.0 SEK | identity 100%, material 45%, size 62%, title 90%, factory marks 45% |
| 6639 | 68% | 1600.0 SEK | identity 100%, material 45%, size 62%, title 89%, factory marks 45% |
| 8007 | 68% | 400.0 SEK | identity 100%, material 45%, size 62%, title 86%, factory marks 45% |
| 1725 | 68% | 1900.0 SEK | identity 100%, material 45%, size 62%, title 84%, factory marks 45% |
| 8566 | 68% | 1700.0 SEK | identity 100%, material 45%, size 62%, title 83%, factory marks 45% |
| 8911 | 68% | 750.0 SEK | identity 100%, material 45%, size 62%, title 83%, factory marks 45% |
| 606 | 67% | 300.0 SEK | identity 100%, material 45%, size 62%, title 76%, 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.