Acquisition position
Stig Lindberg · Ceramics and porcelain · Auktionshuset Kolonn
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Höjd ca 29 cm.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 46% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 41% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 39% · Marks 25% · Material 40%
25% combined confidenceVisual 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 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 confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Alexander Gardner American, born Scotland, 1821–1882
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEleanor Antin American, born 1935
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIrving Penn American, 1917–2009
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEleanor Antin American, born 1935
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEleanor Antin American, born 1935
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMel Bochner American, 1940-2025
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEleanor Antin American, born 1935
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoYasui Sotaro Japanese, 1888-1955
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoKatsushika Hokusai 葛飾 北斎 Japanese, 1760-1849
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoSaito Kiyoshi Japanese, 1907-1997
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDoug Huston American, born 1949
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMOS (American, founded 2003) Michael Meredith (American, born 1971) Hillary Sample (American, born 1971)
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 16434 | 66% | 800.0 SEK | identity 100%, material 45%, size 62%, title 68%, factory marks 45% |
| 1414 | 66% | 400.0 SEK | identity 100%, material 45%, size 62%, title 67%, factory marks 45% |
| 19317 | 65% | 1497.0 SEK | identity 100%, material 45%, size 62%, title 65%, factory marks 45% |
| 7785 | 66% | 600.0 SEK | identity 100%, material 45%, size 62%, title 67%, factory marks 45% |
| 17626 | 65% | 300.0 SEK | identity 100%, material 45%, size 62%, title 64%, factory marks 45% |
| 9474 | 65% | 1006.0 SEK | identity 100%, material 45%, size 62%, title 65%, factory marks 45% |
| 12868 | 65% | 650.0 SEK | identity 100%, material 45%, size 62%, title 64%, factory marks 45% |
| 9175 | 65% | 350.0 SEK | identity 100%, material 45%, size 62%, title 66%, 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.