Acquisition position
Current all in cost
1200.0 SEK
Current bid or estimate900.0 SEK
Modelled discount52.3%
Liquidity score84%
Nils Tornberg · Silver and metalware · RA Auktionsverket Norrköping
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Längd ca 21,5 cm Vikt ca 116 gr.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 43% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 40%
25% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
James Gillray (English, 1756-1815) published by Hannah Humphrey (English, c. 1745-1818)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoKatsuma Antei Ryūsui, Kano Yoshinobu, Suzuki Rinsho, Komatsuken et.al 1711-1796
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCarl Albert von Lespilliez (German, 1723-1796) after François de Cuvilliés the elder (French, 1695-1768)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCarl Albert von Lespilliez (German, 1723-1796) after François de Cuvilliés the elder (French, 1695-1768)
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 11479 | 53% | 1200.0 SEK | identity 57%, material 45%, size 62%, title 53%, hallmarks 45%, weight 62% |
| 19482 | 52% | 3300.0 SEK | identity 56%, material 45%, size 62%, title 46%, hallmarks 45%, weight 62% |
| 14578 | 52% | 11000.0 SEK | identity 54%, material 45%, size 62%, title 61%, hallmarks 45%, weight 62% |
| 22068 | 52% | 2400.0 SEK | identity 56%, material 45%, size 62%, title 46%, hallmarks 45%, weight 62% |
| 19984 | 52% | 1500.0 SEK | identity 53%, material 45%, size 62%, title 60%, hallmarks 45%, weight 62% |
| 1362 | 52% | 5819.0 SEK | identity 55%, material 45%, size 62%, title 51%, hallmarks 45%, weight 62% |
| 10030 | 52% | 1200.0 SEK | identity 55%, material 45%, size 62%, title 47%, hallmarks 45%, weight 62% |
| 499 | 51% | 1378.0 SEK | identity 52%, material 45%, size 62%, title 58%, hallmarks 45%, weight 62% |
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.