Acquisition position
Unknown maker or artist · Clocks and watches · Björnssons Auktionskammare
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Datumvisning. Kaliber 564. Verknummer 24291675. Diameter ca 3,5cm.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 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 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 confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Edward Clark Potter (American, 1857–1923)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJohn Pfahl American, 1939-2020
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEdvard Munch Norwegian, 1863-1944
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJoan Miró Spanish, 1893-1983
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAimé-Jules Dalou (French, 1838–1902)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoWols German, 1913-1951
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEdvard Munch Norwegian, 1863-1944
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoFrederick W. MacMonnies (American, 1863–1937) Cast by E. Gruet Jeune Foundry (French, 1891–1904) Paris, France
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEdvard Munch Norwegian, 1863-1944
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoUnknown Artist Southern German, late 16th century
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEdvard Munch Norwegian, 1863-1944
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEdvard Munch Norwegian, 1863-1944
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
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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.