Acquisition position
Current all in cost
3000.0 SEK
Current bid or estimate3000.0 SEK
Modelled discount0.0%
Liquidity score88%
Wiwen Nilsson · Jewelry · Uppsala Auktionskammare
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
L 10 cm, vikt 13,2 gram. 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 86% · Marks 25% · Material 40%
33% combined confidenceVisual 0% · Name 86% · Marks 25% · Material 40%
33% combined confidenceVisual 0% · Name 42% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 39% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 38% · 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 36% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 36% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 25% · Marks 25% · Material 40%
22% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
David Alfaro Siqueiros Mexican, 1896-1974
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMarcel Duchamp (American, born France, 1887-1968), André Breton (French, 1896-1966), Enrico Donati (American, born Italy, 1909-2008), Victor Brauner (Romanian, 1903-1966), Max Ernst (American and French, born Germany, 1891-1976), Jacques Hérold (French, born Romania, 1909-1987), Wifredo Lam (Cuban, 1902-1982), Joan Miró (Spanish, 1893-1983), Hans Bellmer (German, born Poland, 1902-1975), Marcel Jean (French, 1900-1993), Maria Martins (Brazilian, 1900-1973), Yves Tanguy (American, born France, 1900-1955), Dorothea Tanning (American, 1910-2012), Hans Arp (French, born Germany, 1886-1966), Serge Brignoni (Swiss, 1903-2002), Alexander Calder (American, 1898-1976), Bruno Capacci (Italian, 1906-1996), Suzanne van Damme (Belgian, 1901-1986), Julio De Diego (American, born Spain, 1900-1979), David Hare (American, 1917-1992), Jacqueline Lamba (American, 1910-1993), Matta (French, born Chile, 1911-2002), Kay Sage (American, 1898-1963), and Cerminova Marie Toyen (Czech, 1902-1980) published by Pierre a Feu Maeght (France, 20th century)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoOnchi Kōshirō Japanese, 1891-1955
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJuan Gris Spanish, 1887-1927
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHarold Allen American, 1912–1998
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGeorg Kolbe German, 1877-1947
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPierre Bonnard French, 1867–1947
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJock Sturges American, born 1947
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJohn Marin (American, 1870–1953)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAlberto Giacometti Swiss, 1901–1966
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPaul Dougherty American, 1877-1947
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoWilliam Baziotes American, 1912–1963
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 12421 | 66% | 10500.0 SEK | identity 100%, material 45%, size 62%, title 85%, hallmarks 45%, weight 62% |
| 2304 | 66% | 9000.0 SEK | identity 100%, material 45%, size 62%, title 85%, hallmarks 45%, weight 62% |
| 7835 | 66% | 50000.0 SEK | identity 100%, material 45%, size 62%, title 85%, hallmarks 45%, weight 62% |
| 3537 | 65% | 2200.0 SEK | identity 100%, material 45%, size 62%, title 80%, hallmarks 45%, weight 62% |
| 7634 | 64% | 43000.0 SEK | identity 100%, material 45%, size 62%, title 57%, hallmarks 45%, weight 62% |
| 17231 | 50% | 350.0 SEK | identity 45%, material 45%, size 62%, title 85%, hallmarks 45%, weight 62% |
| 17367 | 50% | 300.0 SEK | identity 45%, material 45%, size 62%, title 85%, hallmarks 45%, weight 62% |
| 16050 | 50% | 300.0 SEK | identity 45%, material 45%, size 62%, title 85%, 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.