Acquisition position
Current all in cost
375.0 SEK
Current bid or estimate300.0 SEK
Modelled discount60.3%
Liquidity score80%
Marianne Westman · Ceramics and porcelain · Borås Auktionshall
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Höjd 14 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 46% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 43% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 42% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 41% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · 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
Marianne Boers American, born 1945
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Marianne Strengell Hammarström (Finnish, 1909–1998) Produced by Tai Ping China, Hong Kong
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Marianne Strengell Hammarström (Finnish, 1909–1998) Woven by Chatham Manufacturing Company United States, North Carolina, Elkin
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Marianne Strengell Hammarström (Finnish, 1909–1998) United States, Michigan, Bloomfield Hills, Cranbrook Academy of Art
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Marianne Strengell Hammarström (Finnish, 1909–1998) United States, Michigan, Bloomfield Hills, Cranbrook Academy of Art
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Marianne Richter (Swedish, 1916-2010) Woven at Märta Maas-Fjetterström Atelier Sweden, Bästad
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMarianne Willisch American, born Vienna, 1897–1984
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Marianne Strengell Hammarström (Finnish, 1909–1998) Woven by Jôtô Japan
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Marianne Strengell Hammarström (Finnish, 1909–1998) United States, Michigan, Bloomfield Hills
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Marianne Strengell Hammarström (Finnish, 1909–1998) Woven by Gerda Nyberg (Swedish, active c. 1946) United States, Michigan, Bloomfield Hills, Cranbrook Academy of Art
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Marianne Strengell Hammarström (Finnish, 1909–1998) United States
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Marianne Strengell Hammarström (Finnish, 1909–1998) United States, Michigan, Bloomfield Hills, Cranbrook Academy of Art
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 14469 | 67% | 1400.0 SEK | identity 100%, material 45%, size 62%, title 92%, factory marks 45% |
| 2145 | 67% | 350.0 SEK | identity 100%, material 45%, size 62%, title 92%, factory marks 45% |
| 14847 | 66% | 500.0 SEK | identity 100%, material 45%, size 62%, title 79%, factory marks 45% |
| 14159 | 66% | 4000.0 SEK | identity 100%, material 45%, size 62%, title 79%, factory marks 45% |
| 14350 | 66% | 1200.0 SEK | identity 100%, material 45%, size 62%, title 79%, factory marks 45% |
| 2117 | 66% | 1304.0 SEK | identity 100%, material 45%, size 62%, title 79%, factory marks 45% |
| 4594 | 66% | 800.0 SEK | identity 100%, material 45%, size 62%, title 79%, factory marks 45% |
| 7368 | 66% | 300.0 SEK | identity 100%, material 45%, size 62%, title 79%, 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.