Acquisition position
Current all in cost
340.0 SEK
Current bid or estimate200.0 SEK
Modelled discount44.8%
Liquidity score80%
Svend Jespersen · Ceramics and porcelain · Markus Auktioner
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Höjd ca 8 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 86% · Marks 25% · Material 40%
33% combined confidenceVisual 0% · Name 45% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 43% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · 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 37% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 36% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 34% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 30% · Marks 25% · Material 40%
23% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Louis H. Sullivan American, 1856-1924
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoLan Ying (Chinese, 1585-c. 1664)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoUnknown Artist (American, 20th century) commissioned by the Junior Members Round Table of the Pennsylvania Library Association published by Works Progress Administration
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGerman or Austrian
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoSvend Hammershøi Danish, 1873-1948 Denmark
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoNairy Baghramian German, born Iran, 1971
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEgyptian; Thebes (modern Luxor), Egypt
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoXu Bing and Ai Weiwei Chinese, born 1955 and 1957
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEgyptian
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMoche North coast, Peru
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEgyptian; Hawara, Egypt
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoSalvator Rosa Italian, 1615-1673
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 6379 | 67% | 650.0 SEK | identity 100%, material 45%, size 62%, title 89%, factory marks 45% |
| 3586 | 52% | 400.0 SEK | identity 54%, material 45%, size 62%, title 74%, factory marks 45% |
| 9767 | 51% | 300.0 SEK | identity 57%, material 45%, size 62%, title 47%, factory marks 45% |
| 2796 | 51% | 300.0 SEK | identity 57%, material 45%, size 62%, title 41%, factory marks 45% |
| 9344 | 50% | 755.0 SEK | identity 53%, material 45%, size 62%, title 49%, factory marks 45% |
| 5426 | 50% | 300.0 SEK | identity 45%, material 45%, size 62%, title 79%, factory marks 45% |
| 907 | 50% | 350.0 SEK | identity 53%, material 45%, size 62%, title 45%, factory marks 45% |
| 254 | 49% | 1000.0 SEK | identity 45%, material 45%, size 62%, title 72%, 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.