Acquisition position
Kerstin Forsgren · Prints and works on paper · Hälsinglands Auktionsverk
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
42x35cm Has resale rights.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 41% · 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 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 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 32% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 32% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 30% · Marks 25% · Material 40%
23% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Made for Ella Maria Deacon (American, 1811–94) Mount Holly, New Jersey, United States
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPeter Halley American, born 1953
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoD.H. Burnham & Company American, 1896–1912
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJohn Szarkowski American, 1925–2007
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMarc Chagall French, born Belarus, 1887-1985
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJohn Szarkowski American, 1925–2007
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAdler & Sullivan (American, 1883-1896) Louis H. Sullivan (American, 1856-1924) Executed by Healy and Millet
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPaul Cezanne (French, 1839–1906)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPossibly Domenico Maggiotto Italian, 1713-1794
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoFazal Sheikh American, born 1965
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJohn Ramage American, born Ireland, 1748–1842
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoPaul Gauguin French, 1848-1903
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 16527 | 60% | 350.0 SEK | identity 74%, material 45%, size 62%, title 79%, edition 45% |
| 15167 | 59% | 350.0 SEK | identity 70%, material 45%, size 62%, title 79%, edition 45% |
| 16752 | 59% | 350.0 SEK | identity 74%, material 45%, size 62%, title 69%, edition 45% |
| 3753 | 54% | 1000.0 SEK | identity 60%, material 45%, size 62%, title 71%, edition 45% |
| 19748 | 53% | 650.0 SEK | identity 61%, material 45%, size 62%, title 58%, edition 45% |
| 8084 | 53% | 300.0 SEK | identity 59%, material 45%, size 62%, title 60%, edition 45% |
| 8227 | 52% | 350.0 SEK | identity 56%, material 45%, size 62%, title 67%, edition 45% |
| 4 | 52% | 500.0 SEK | identity 52%, material 45%, size 62%, title 73%, edition 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.