Acquisition position
Unknown maker or artist · Photography · Björnssons Auktionskammare
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Totalt 66 autografer på foto eller kort. Några sannolikt utförda med autopen eller förtryckta. Anna Lind, Mona Sahlin, Ann Linde, Beatrice ask, Ann-Christin Nykvist, Lars Lejonborg (2), Per Ahlmark, Görel Thurdin, Berit Adnor, Karin Söder, Åsa Romson, Hadar Cars, Morgan Johansson, Birgitta Dahl, Gun Hellsvik, Maud Olofsson, Ingegerd Wärnersson, Johannes Andersson, Anders Björk, Bo Holmberg, Mats Hellström, Jarl Hjalmarsson, Lena Hjelm-Wallén, Sven Aspling, Margareta Winberg, Margot Wahlström, Jakob Forssmed, Gunnar Helén, Cecilia Malmström, Sten Tolgfors, Hans Carlsson, Lene Sonnestad, Alf Svensson, Anders Åslund, Bo Ringholm, Cristina Husmark Pehrsson, Maria Larsson, Catharina Elmsäter-Svärd, Tobias Karlsson, Ingvar Carlsson, Maj -Lis Lööw, Ylva Johansson, Ingemar Mundebo, Gudrun Schyman, Anita Gradin, Lars Werner, Åsa Torstensson, Anna Kinberg Batra, Fredrik Reinfelt, Per Nuder, Lars Ohly, Jonas Sjöstedt samt några oidentifierade.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 57% · Marks 25% · Material 40%
28% combined confidenceVisual 0% · Name 35% · Marks 25% · Material 40%
24% combined confidenceVisual 0% · Name 27% · Marks 25% · Material 40%
23% combined confidenceVisual 0% · Name 26% · Marks 25% · Material 40%
23% combined confidenceVisual 0% · Name 26% · Marks 25% · Material 40%
23% combined confidenceVisual 0% · Name 25% · Marks 25% · Material 40%
23% combined confidenceVisual 0% · Name 25% · Marks 25% · Material 40%
22% combined confidenceVisual 0% · Name 25% · Marks 25% · Material 40%
22% combined confidenceVisual 0% · Name 25% · Marks 25% · Material 40%
22% combined confidenceVisual 0% · Name 25% · Marks 25% · Material 40%
22% combined confidenceVisual 0% · Name 24% · Marks 25% · Material 40%
22% combined confidenceVisual 0% · Name 23% · 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
Sweden Svenska Krystall Glasbruker (Swedish, 20th century)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoWalter Shirlaw (American, 1838–1909)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGérard Edelinck (French, born Flanders, 1640-1707) after Hyacinthe Rigaud (French, 1659-1743)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJean-Baptiste-Camille Corot (French, 1796-1875) printed by Auguste Delâtre (French, 1822-1907) published by Cadart et Chavalier, Editeurs (French, 1801-1900)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoLawrence Carmichael Earle American, 1845-1921
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGeorges Seurat (French, 1859–1891)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAdolphe Appian French, 1818-1898
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDavid Dalhoff Neal (American, 1838–1915)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEdward Hopper (American, 1882–1967)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEdward Kemeys (American, 1843–1907) American Bronze Founding Company (American, founded 1886) Chicago
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoGrant Wood (American, 1891–1942)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoSalvator Rosa Italian, 1615-1673
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
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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.