Acquisition position
Current all in cost
632.1 SEK
Current bid or estimate450.0 SEK
Modelled discount38.8%
Liquidity score76%
Bertil Vallien · Art glass · Uppsala Auktionskammare
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Signerade, H 7-7,5 cm.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 100% · Marks 25% · Material 40%
35% combined confidenceVisual 0% · Name 41% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · 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 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 37% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 34% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 33% · 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 24% · Marks 25% · Material 40%
22% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Bertil Vallien
0% similaritymetadata only or restricted imageArt Institute of ChicagoMan Ray American, 1890–1976
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGreek; probably Samos
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoRoman
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCharles Eames (American, 1907–1978) Ray Eames (American, 1912–1988) Made by Herman Miller Furniture Co. Zeeland, Michigan, founded 1905 (note: Herman Miller Furn. Co. became Herman Miller Inc. in 1960)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoVik Muniz Brazilian, born 1961
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoŌmura Kōyō Japanese, 1891-1983
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoNoguchi Shohin Japanese, 1847-1917
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoIndia Rajasthan, Jaipur
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoArtist unknown Japanese
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoWillie Doherty Irish, born 1959
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoKeith Haring American, 1958-1990
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoRoni Horn American, born 1955
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 3827 | 67% | 350.0 SEK | identity 100%, material 45%, size 62%, title 74%, factory marks 45% |
| 3102 | 67% | 300.0 SEK | identity 100%, material 45%, size 62%, title 74%, factory marks 45% |
| 4512 | 67% | 400.0 SEK | identity 100%, material 45%, size 62%, title 72%, factory marks 45% |
| 2130 | 67% | 400.0 SEK | identity 100%, material 45%, size 62%, title 72%, factory marks 45% |
| 2219 | 67% | 1978.0 SEK | identity 100%, material 45%, size 62%, title 71%, factory marks 45% |
| 7823 | 67% | 500.0 SEK | identity 100%, material 45%, size 62%, title 72%, factory marks 45% |
| 12484 | 67% | 550.0 SEK | identity 100%, material 45%, size 62%, title 69%, factory marks 45% |
| 7016 | 67% | 1000.0 SEK | identity 100%, material 45%, size 62%, title 71%, 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.