Acquisition position
Anna Castelli · Paintings · Helsingborgs Auktionskammare
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Längd38, bredd 38, höjd 50 cm 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 41% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · 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 36% · Marks 25% · Material 40%
25% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Fra Carnevale (Bartolomeo di Giovanni Corradini)
0% similarityCC0 when isPublicDomain is trueArt Institute of ChicagoAnna Ticho Israeli, born Moravia, 1894-1980
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAnna Claypoole Peale (American, 1791–1878)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAnna Ticho Israeli, born Moravia, 1894-1980
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAnna Ticho Israeli, born Moravia, 1894-1980
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Anna G. Lyman (American, active 1880/1900) Executed by Associated Artists, 1833–1907 United States, Illinois, Chicago
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEdward Steichen American, born Luxembourg, 1879–1973
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoThomas Sully (American, born England, 1783–1872)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAnna Ticho Israeli, born Moravia, 1894-1980
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPossibly after Anna Maria Garthwaite (English, 1690–1763) England, Spitalfields
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoSir Thomas Lawrence (English, 1769-1830)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Anna Maria Garthwaite English, 1690–1763 England, Spitalfields
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAnna Ticho Israeli, born Moravia, 1894-1980
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 20058 | 58% | 300.0 SEK | identity 64%, material 45%, size 62%, title 51% |
| 19860 | 53% | 300.0 SEK | identity 58%, material 45%, size 62%, title 37% |
| 20570 | 53% | 300.0 SEK | identity 57%, material 45%, size 62%, title 39% |
| 18270 | 52% | 1000.0 SEK | identity 54%, material 45%, size 62%, title 41% |
| 18592 | 52% | 459.0 SEK | identity 54%, material 45%, size 62%, title 41% |
| 18021 | 52% | 1700.0 SEK | identity 54%, material 45%, size 62%, title 41% |
| 18217 | 52% | 300.0 SEK | identity 54%, material 45%, size 62%, title 38% |
| 18917 | 52% | 719.0 SEK | identity 54%, material 45%, size 62%, title 38% |
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.