Acquisition position
Current all in cost
6500.0 SEK
Current bid or estimate6500.0 SEK
Modelled discount0.0%
Liquidity score68%
Sonja Katzin · Sculpture · Stockholms Auktionsverk Magasin 5
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Höjd ca 32 cm Has resale rights.
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 86% · Marks 25% · Material 40%
33% combined confidenceVisual 0% · Name 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · 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 37% · 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 confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Leonard Wells Volk (American, 1828–1895)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoSonja Thomsen American, born 1978
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoRichard Buckminster Fuller (American, 1895-1983) printed by John Lund, Keith Brintzenhofe, Bill Goldston, and Zigmunds Priede; typography by Juda Rosenberg published by Universal Limited Art Editions (American, founded 1955)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoSonja Thomsen American, born 1978
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDeborah Doering American, born 1960
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoUnknown artist printed by Sackett & Wilhelms Corp., New York
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHa Chong-Hyun Korean, born 1935
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHa Chong-Hyun Korean, born 1935
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJohn Szarkowski American, 1925–2007
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEl Greco (Doménikos Theotokópoulos; Greek, active in Spain, 1541–1614)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoFrancisco José de Goya y Lucientes Spanish, 1746-1828
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPierre-Auguste Renoir (French, 1841–1919)
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 10029 | 53% | 17000.0 SEK | identity 58%, material 45%, size 62%, title 54%, foundry or marks 45% |
| 12944 | 50% | 3210.0 SEK | identity 52%, material 45%, size 62%, title 47%, foundry or marks 45% |
| 11381 | 49% | 2425.0 SEK | identity 52%, material 45%, size 62%, title 39%, foundry or marks 45% |
| 14756 | 49% | 600.0 SEK | identity 52%, material 45%, size 62%, title 32%, foundry or marks 45% |
| 11295 | 48% | 1700.0 SEK | identity 48%, material 45%, size 62%, title 47%, foundry or marks 45% |
| 11268 | 48% | 800.0 SEK | identity 46%, material 45%, size 62%, title 51%, foundry or marks 45% |
| 2570 | 48% | 1849.0 SEK | identity 45%, material 45%, size 62%, title 54%, foundry or marks 45% |
| 13337 | 48% | 800.0 SEK | identity 45%, material 45%, size 62%, title 53%, foundry or 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.