Acquisition position
Current all in cost
770.39 SEK
Current bid or estimate450.0 SEK
Modelled discount73.3%
Liquidity score84%
Gustaf Fredrik Richter · Silver and metalware · Uppsala Auktionskammare
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
L. 21,5 cm. Vikt ca 45 gram.
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 42% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 32% · 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
Denis Auguste Marie Raffet (French, 1804-1860) printed by Gihaut Frères (French, 19th century)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoThomas Cole (American, born England, 1801–1848)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoKatsushika Hokusai 葛飾 北斎 Japanese, 1760-1849
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCamille Pissarro (French, 1830–1903)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCamille Pissarro (French, 1830–1903)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCamille Pissarro (French, 1830–1903)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCamille Pissarro (French, 1830–1903)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCamille Pissarro (French, 1830–1903)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCamille Pissarro (French, 1830–1903)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCamille Pissarro (French, 1830–1903)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCamille Pissarro (French, 1830–1903)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCamille Pissarro (French, 1830–1903)
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 1471 | 53% | 1900.0 SEK | identity 61%, material 45%, size 62%, title 45%, hallmarks 45%, weight 62% |
| 7860 | 53% | 1300.0 SEK | identity 61%, material 45%, size 62%, title 47%, hallmarks 45%, weight 62% |
| 7919 | 53% | 1200.0 SEK | identity 61%, material 45%, size 62%, title 47%, hallmarks 45%, weight 62% |
| 8201 | 53% | 1550.0 SEK | identity 61%, material 45%, size 62%, title 45%, hallmarks 45%, weight 62% |
| 4124 | 51% | 5787.0 SEK | identity 51%, material 45%, size 62%, title 50%, hallmarks 45%, weight 62% |
| 1269 | 50% | 3200.0 SEK | identity 48%, material 45%, size 62%, title 61%, hallmarks 45%, weight 62% |
| 12598 | 50% | 1200.0 SEK | identity 45%, material 45%, size 62%, title 71%, hallmarks 45%, weight 62% |
| 2959 | 50% | 300.0 SEK | identity 45%, material 45%, size 62%, title 68%, 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.