Acquisition position
Peter Dahl · Prints and works on paper · Helsingborgs Auktionskammare
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Ramstorlek 76 x 59 cm, 35/90 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 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 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
Peter Blume (American, born Smorgon, Russian Empire, now Belarus, 1906–1992)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPeter Doig Scottish, born 1959
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPeter Blume (American, born Smarhoń, Russian Empire, now Belarus, 1906–1992)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCornelis Visscher Dutch, c. 1629-1658
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPeter Paul Rubens (Flemish, 1577–1640)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPeter Paul Rubens (Flemish, 1577-1640)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPeter Hurd (American, 1904–1984)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPeter Saul American, born 1934
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPeter Paul Rubens (Flemish, 1577–1640)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJusepe de Ribera (Spanish, 1588–1652)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPeter Blume American, born Russia, 1906-1992
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPeter Blume American, born Russia, 1906-1992
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 9699 | 68% | 2000.0 SEK | identity 100%, material 45%, size 62%, title 77%, edition 45% |
| 1607 | 54% | 350.0 SEK | identity 67%, material 45%, size 62%, title 52%, edition 45% |
| 9808 | 54% | 300.0 SEK | identity 67%, material 45%, size 62%, title 50%, edition 45% |
| 10312 | 50% | 300.0 SEK | identity 48%, material 45%, size 62%, title 72%, edition 45% |
| 8094 | 50% | 3009.0 SEK | identity 45%, material 45%, size 62%, title 74%, edition 45% |
| 6011 | 49% | 1000.0 SEK | identity 50%, material 45%, size 62%, title 56%, edition 45% |
| 8376 | 49% | 450.0 SEK | identity 52%, material 45%, size 62%, title 48%, edition 45% |
| 6063 | 49% | 300.0 SEK | identity 48%, material 45%, size 62%, title 57%, edition 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.