Acquisition position
Current all in cost
479.46 SEK
Current bid or estimate300.0 SEK
Modelled discount54.6%
Liquidity score76%
Bertil Vallien · Art glass · Karljohan Auktioner
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Högsta 14,5 cm.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 40% · 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 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 37% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 37% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 36% · 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 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
Designed by Jean George Theobald (American, active 1920s-30s) Manufactured by Wilcox Silver Plate Company (American, 1867–1961), a division of International Silver Company (American, founded 1898) Meriden, Connecticut
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJean-Simon Chaudron (American, born France, 1758–1846) Anthony Rasch (American, c.1780–1858) Philadelphia
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMatthew Barney American, born 1967
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHarry Bergen Wheelock, architect American, 1861-1934 Kristian Schneider, designer American, 1864-1935 Fabricated by: Northwestern Terra Cotta Company
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoLenox, Incorporated (American, founded 1889) Trenton, New Jersey
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoBarbour Silver Co., Division of International Silver Company (American, 1892–1931) Chasing by Christopher M. Whalen (American, 1867–1932) Meriden, Connecticut
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEdgar Miller, Designer American, 1899-1993 Holabird & Root, Architects Alfred Muenzenthaler, Fabricator
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoBernd Becher (German, 1931–2007) and Hilla Becher (German, 1934-2015)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDu Paquier Porcelain Manufactory (1719–44) Vienna
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoHeidi Norton American, born 1977
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoArtist unknown (Chinese, made for the American market) China
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoClaire Zeisler (American, 1903-1991) Chicago, Illinois, United States
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 13118 | 69% | 500.0 SEK | identity 100%, material 45%, size 62%, title 98%, factory marks 45% |
| 8541 | 69% | 1201.0 SEK | identity 100%, material 45%, size 62%, title 98%, factory marks 45% |
| 2219 | 68% | 1978.0 SEK | identity 100%, material 45%, size 62%, title 92%, factory marks 45% |
| 11171 | 68% | 4585.0 SEK | identity 100%, material 45%, size 62%, title 87%, factory marks 45% |
| 6009 | 68% | 1800.0 SEK | identity 100%, material 45%, size 62%, title 87%, factory marks 45% |
| 13340 | 68% | 300.0 SEK | identity 100%, material 45%, size 62%, title 84%, factory marks 45% |
| 1948 | 68% | 450.0 SEK | identity 100%, material 45%, size 62%, title 83%, factory marks 45% |
| 1574 | 68% | 300.0 SEK | identity 100%, material 45%, size 62%, title 83%, 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.