Acquisition position
Current all in cost
1500.0 SEK
Current bid or estimate948.0 SEK
Modelled discount54.3%
Liquidity score84%
Sylvia Stave · Silver and metalware · Auktionshuset STO Bohuslän
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Cylinderformad med linjer i relief. Knopp i form av elefant. Diameter ca 12 cm, höjd ca 11 cm.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 44% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 41% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 41% · Marks 25% · Material 40%
25% 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 39% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 34% · 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
Georgia O'Keeffe (American, 1887–1986)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoRudolf Baranik American, born 1920
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCharles Demuth (American, 1883–1935)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIvan Albright (American, 1897–1983)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoArtist unknown active 20th century
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIvan Albright (American, 1897–1983)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoClarence William Anderson American, 1891-1971
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPablo Picasso Spanish, active France, 1881–1973
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoSalvador Dali Spanish, 1904–1989
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoA. A. Moore (English, 20th century) printed by Dangerfield Printing Company Limited published by Underground Electric Railways Company of London Limited
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIvan Albright (American, 1897–1983)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHenri Matisse French, 1869-1954
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 7986 | 66% | 2917.0 SEK | identity 100%, material 45%, size 62%, title 77%, hallmarks 45%, weight 62% |
| 17025 | 55% | 650.0 SEK | identity 64%, material 45%, size 62%, title 53%, hallmarks 45%, weight 62% |
| 17245 | 51% | 700.0 SEK | identity 54%, material 45%, size 62%, title 44%, hallmarks 45%, weight 62% |
| 12088 | 51% | 5513.0 SEK | identity 53%, material 45%, size 62%, title 44%, hallmarks 45%, weight 62% |
| 9156 | 50% | 300.0 SEK | identity 45%, material 45%, size 62%, title 77%, hallmarks 45%, weight 62% |
| 19786 | 50% | 2483.0 SEK | identity 45%, material 45%, size 62%, title 71%, hallmarks 45%, weight 62% |
| 17022 | 50% | 5169.0 SEK | identity 45%, material 45%, size 62%, title 67%, hallmarks 45%, weight 62% |
| 16425 | 50% | 8307.0 SEK | identity 45%, material 45%, size 62%, title 67%, 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.