Acquisition position
Current all in cost
467.71 SEK
Current bid or estimate350.0 SEK
Modelled discount66.3%
Liquidity score82%
Bertil Ollerstad · Paintings · Formstad Auktioner
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Rammått 60 x 46 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 45% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 43% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 42% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 39% · 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 36% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 35% · 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
Louis H. Sullivan American, 1856-1924
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Bertil Vallien Swedish, born 1938 Made by Kosta Boda Kosta, Småland, Sweden, founded 1742
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoLan Ying (Chinese, 1585-c. 1664)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGerman or Austrian
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoNairy Baghramian German, born Iran, 1971
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMoche North coast, Peru
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJohn Delmester English, active 1755-c. 1763 London, England
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAttributed to Torii Kiyonobu I Japanese, 1664-1729
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAttributed to Torii Kiyonobu I Japanese, 1664-1729
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAttributed to Torii Kiyonobu I Japanese, 1664-1729
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoLudwig Karl Hilberseimer American, born Germany, 1885-1967
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAttributed to Torii Kiyonobu I Japanese, 1664-1729
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 20436 | 60% | 8000.0 SEK | identity 62%, material 45%, size 62%, title 71% |
| 22004 | 59% | 2001.0 SEK | identity 64%, material 45%, size 62%, title 64% |
| 20614 | 59% | 1304.0 SEK | identity 62%, material 45%, size 62%, title 63% |
| 20937 | 58% | 350.0 SEK | identity 67%, material 45%, size 62%, title 46% |
| 20957 | 58% | 4200.0 SEK | identity 62%, material 45%, size 62%, title 59% |
| 23033 | 57% | 1910.0 SEK | identity 63%, material 45%, size 62%, title 49% |
| 19823 | 56% | 350.0 SEK | identity 58%, material 45%, size 62%, title 59% |
| 23378 | 56% | 250.0 SEK | identity 56%, material 45%, size 62%, title 62% |
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.