Acquisition position
Unknown maker or artist · Clocks and watches · Crafoord Auktioner Lund
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Boettdiameter 33,9 mm. Plexiglas. Datum. Boettnummer 357548.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 35% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 35% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 35% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 34% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 34% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 34% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 34% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 32% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 31% · 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
Giorgio de Chirico Italian, born Greece, 1888–1978
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHenri de Toulouse-Lautrec (French, 1864-1901) published by Gustave Pellet (French, 1859-1919) probably printed by Auguste Clot (French, 1858-1936)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoLeopoldo Méndez Mexican, 1902-1969
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoTimothy O'Sullivan American, born Ireland, 1840–1882
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoRufino Tamayo (Mexican, 1899–1991) printed by Printed by Jean Paul Vibert, Grosrouvre, and Lucien Détruit, Paris (French, 20th century) published by Club International de Bibliophile and Jaspard, Polus & Cie., Monaco (French, active c. 1959-1971)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoTsukioka Yoshitoshi Japanese, 1839-1892
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAntoine Dieu French, 1662-1727
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoTimothy O'Sullivan American, born Ireland, 1840–1882
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoUnknown Artist British
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoTimothy O'Sullivan American, born Ireland, 1840–1882
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoFollower of Girolamo Sellari, called Girolamo da Carpi Italian, 1501-1556
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoLeopoldo Méndez Mexican, 1902-1969 printed by the artist at El Taller de Gráfica Popular, Mexico City published by La Estampa Mexicana illustrations for the book Incidentes Melódicos del Mundo Irracional by Juan de la Cabada
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.