Acquisition position
Current all in cost
579.85 SEK
Current bid or estimate400.0 SEK
Modelled discount63.3%
Liquidity score80%
Lisa Larson · Ceramics and porcelain · RA Auktionsverket Norrköping
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Mått ca 22,5 x 22,5 cm.
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 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 37% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 33% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 31% · 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
Lisa Larsen American, 1925–1959
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoLisa Larsen American, 1925–1959
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoRobert Mapplethorpe American, 1946–1989
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoTimothy Cole (American, born England, 1852-1931) after Leonardo da Vinci (Italian, 1452-1519)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoLisa Larsen American, 1925–1959
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIrving Penn American, 1917–2009
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIrving Penn American, 1917–2009
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAndy Warhol American, 1928-1987
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoLisa Larsen American, 1925–1959
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoRobert Mapplethorpe American, 1946–1989
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIrving Penn American, 1917–2009
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIrving Penn American, 1917–2009
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 7485 | 68% | 500.0 SEK | identity 100%, material 45%, size 62%, title 100%, factory marks 45% |
| 8518 | 68% | 1287.0 SEK | identity 100%, material 45%, size 62%, title 100%, factory marks 45% |
| 12579 | 67% | 1610.0 SEK | identity 100%, material 45%, size 62%, title 85%, factory marks 45% |
| 12685 | 67% | 1250.0 SEK | identity 100%, material 45%, size 62%, title 85%, factory marks 45% |
| 11372 | 67% | 400.0 SEK | identity 100%, material 45%, size 62%, title 85%, factory marks 45% |
| 10678 | 67% | 1700.0 SEK | identity 100%, material 45%, size 62%, title 85%, factory marks 45% |
| 10862 | 67% | 1400.0 SEK | identity 100%, material 45%, size 62%, title 85%, factory marks 45% |
| 10889 | 67% | 4000.0 SEK | identity 100%, material 45%, size 62%, title 85%, factory 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.