Acquisition position
Unknown maker or artist · Clocks and watches · Stockholms Auktionsverk Sickla
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Serienummer: 9143930 Shock and Water protected, non magnetic Diameter boet ca 35 mm.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 43% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 42% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 34% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 32% · 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
James Gillray (English, 1756-1815) published by Hannah Humphrey (English, c. 1745-1818)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoNam June Paik American, born Korea, 1932-2006
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoKatsukawa Shunshô 勝川 春章 Japanese, 1726-1792
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIppitsusai Bunchô Japanese, active about 1755–90
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoKatsukawa Shunshô 勝川 春章 Japanese, 1726-1792
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoKatsukawa Shunsho 勝川 春章 Japanese, 1726-1792
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoKatsukawa Shunsho 勝川 春章 Japanese, 1726-1792
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoKatsukawa Shunshô 勝川 春章 Japanese, 1726-1792
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIppitsusai Buncho Japanese, active c. 1755-90
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHorst Janssen, (German, 1929-1995) Published by Luigi Toninelli, Agno Schweiz and Cayman Graphics (Georgetown, Cayman Islands) Printed by Atelier Volker Sammet, Stuttgart
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHorst Janssen, (German, 1929-1995) Published by Luigi Toninelli, Agno Schweiz and Cayman Graphics (Georgetown, Cayman Islands) Printed by Atelier Volker Sammet, Stuttgart
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHorst Janssen, (German, 1929-1995) Published by Luigi Toninelli, Agno Schweiz and Cayman Graphics (Georgetown, Cayman Islands) Printed by Atelier Volker Sammet, Stuttgart
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|
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.