Acquisition position
Gunnar Nylund · Ceramics and porcelain · Höörs Auktionshall
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
diameter 17 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 44% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 38% · 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
Edvard Munch (Norwegian, 1863-1944) printed by Lassally (German, late 19th-early 20th century)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGunnar Lundberg American, born Sweden, 20th century
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGunnar Lundberg American, born Sweden, 20th century
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGunnar Lundberg American, born Sweden, 20th century
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGunnar Lundberg American, born Sweden, 20th century
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMarianne Westman Swedish, 1928-2017 Manufactured by Rörstrand Manufactory Swedish, founded 1726
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMarianne Westman Swedish, 1928-2017 Manufactured by Rörstrand Manufactory Swedish, founded 1726
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGunnar Lundberg American, born Sweden, 20th century
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGunnar Lundberg American, born Sweden, 20th century
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoRörstrand Manufactory Swedish, founded 1726
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMarianne Westman Swedish, 1928-2017 Manufactured by Rörstrand Manufactory Swedish, founded 1726
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGunnar Lundberg American, born Sweden, 20th century
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 12248 | 68% | 850.0 SEK | identity 100%, material 45%, size 62%, title 94%, factory marks 45% |
| 11420 | 68% | 869.0 SEK | identity 100%, material 45%, size 62%, title 94%, factory marks 45% |
| 9912 | 68% | 400.0 SEK | identity 100%, material 45%, size 62%, title 94%, factory marks 45% |
| 447 | 68% | 559.0 SEK | identity 100%, material 45%, size 62%, title 94%, factory marks 45% |
| 4670 | 68% | 3809.0 SEK | identity 100%, material 45%, size 62%, title 94%, factory marks 45% |
| 17824 | 67% | 400.0 SEK | identity 100%, material 45%, size 62%, title 91%, factory marks 45% |
| 1888 | 67% | 1200.0 SEK | identity 100%, material 45%, size 62%, title 90%, factory marks 45% |
| 12083 | 67% | 1774.0 SEK | identity 100%, material 45%, size 62%, title 89%, 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.