Acquisition position
Thomas Hellström · Ceramics and porcelain · Karljohan Auktioner
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Diameter 38,5 cm.
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 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 47% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 44% · Marks 25% · Material 40%
26% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Thomas Cole (American, born England, 1801–1848)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAlma Thomas American, 1891–1978
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoThomas Hicks American, 1823–1890
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoThomas Birch American, born England, 1779–1851
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoThomas Cole (American, born England, 1801–1848)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoThomas Hart Benton (American, 1889–1975)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoWoven by Thomas Stevens (English, 1828–88) Coventry, England
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoThomas Struth German, born 1954
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoThomas Fearnley (Norwegian, 1802–1842)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoThomas Doughty American, 1793–1856
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHans Thoma (German, 1839–1924)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoWoven by Thomas Stevens (English, 1828-88) Coventry, England
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 11423 | 68% | 550.0 SEK | identity 100%, material 45%, size 62%, title 94%, factory marks 45% |
| 2330 | 66% | 1701.0 SEK | identity 100%, material 45%, size 62%, title 79%, factory marks 45% |
| 8745 | 66% | 300.0 SEK | identity 100%, material 45%, size 62%, title 79%, factory marks 45% |
| 3413 | 51% | 500.0 SEK | identity 57%, material 45%, size 62%, title 43%, factory marks 45% |
| 10443 | 50% | 700.0 SEK | identity 57%, material 45%, size 62%, title 39%, factory marks 45% |
| 7613 | 50% | 1200.0 SEK | identity 55%, material 45%, size 62%, title 43%, factory marks 45% |
| 3875 | 50% | 300.0 SEK | identity 52%, material 45%, size 62%, title 53%, factory marks 45% |
| 4611 | 50% | 300.0 SEK | identity 52%, material 45%, size 62%, title 53%, factory marks 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.