← Back to command center

SAMLING AUTOGRAFER, SVENSKA POLITIKER.

Unknown maker or artist · Photography · Björnssons Auktionskammare

Open auction lot
0
low priority

Acquisition position

Current all in cost

600.0 SEK
Current bid or estimate500.0 SEK
Modelled discount0.0%
Liquidity score70%

Potential market value

Specialist value interval

Not calculated
Value confidence0%
Comparable sales0

Evidence strength

13%
Identity confidence28%
Visual match0%
External references12

Market anomaly

0%
Information gap100%
Potential undervaluation0.0%

Risk profile

8%
Authenticity risk8%
Condition risk6%

Investigation rationale

Why this may be worth considering

  • Potential valuable component inside a group

Decision guardrails

What must be verified

  • missing photographer
  • missing process
  • missing print_date
  • missing edition
  • missing dimensions
  • missing provenance

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistMissing
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionNo remarks.
ProvenanceMissing
Modelphotography_specialist 2.0.0

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

Artist and maker hypotheses

Ranked from independent evidence. Confirmation or rejection becomes controlled training data.

12 candidates
1 independent sources

Sweden Svenska Krystall Glasbruker (Swedish, 20th century)

Visual 0% · Name 57% · Marks 25% · Material 40%

28% combined confidence
1 independent sources

Jean-Baptiste-Camille Corot (French, 1796-1875) printed by Auguste Delâtre (French, 1822-1907) published by Cadart et Chavalier, Editeurs (French, 1801-1900)

Visual 0% · Name 35% · Marks 25% · Material 40%

24% combined confidence
1 independent sources

Lawrence Carmichael Earle American, 1845-1921

Visual 0% · Name 27% · Marks 25% · Material 40%

23% combined confidence
1 independent sources

Salvator Rosa Italian, 1615-1673

Visual 0% · Name 26% · Marks 25% · Material 40%

23% combined confidence
1 independent sources

David Dalhoff Neal (American, 1838–1915)

Visual 0% · Name 26% · Marks 25% · Material 40%

23% combined confidence
1 independent sources

Walter Shirlaw (American, 1838–1909)

Visual 0% · Name 25% · Marks 25% · Material 40%

23% combined confidence
1 independent sources

Georges Seurat (French, 1859–1891)

Visual 0% · Name 25% · Marks 25% · Material 40%

22% combined confidence
1 independent sources

Grant Wood (American, 1891–1942)

Visual 0% · Name 25% · Marks 25% · Material 40%

22% combined confidence
1 independent sources

Gérard Edelinck (French, born Flanders, 1640-1707) after Hyacinthe Rigaud (French, 1659-1743)

Visual 0% · Name 25% · Marks 25% · Material 40%

22% combined confidence
1 independent sources

Edward Hopper (American, 1882–1967)

Visual 0% · Name 25% · Marks 25% · Material 40%

22% combined confidence
1 independent sources

Edward Kemeys (American, 1843–1907) American Bronze Founding Company (American, founded 1886) Chicago

Visual 0% · Name 24% · Marks 25% · Material 40%

22% combined confidence
1 independent sources

Adolphe Appian French, 1818-1898

Visual 0% · Name 23% · Marks 25% · Material 40%

22% combined confidence

Closed deal feedback

Teach the valuation model

Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.

Learning guardrail

Truth before training

  • Unverified AI output is stored as a hypothesis only.
  • One-source matches are confidence capped.
  • Rejected matches improve source and feature calibration.
  • At least five verified closed sales are required per category.

Global research evidence

Reference material found elsewhere

12 references
Art Institute of Chicago

Vase

Sweden Svenska Krystall Glasbruker (Swedish, 20th century)

0% similarityCheck object rights; API metadata is open
Art Institute of Chicago

Self-Portrait

Walter Shirlaw (American, 1838–1909)

0% similarityCheck object rights; API metadata is open
Art Institute of Chicago

Martin Vanden Bogaert Desjardins

Gérard Edelinck (French, born Flanders, 1640-1707) after Hyacinthe Rigaud (French, 1659-1743)

0% similarityCheck object rights; API metadata is open
Art Institute of Chicago

Remembrance of Italy

Jean-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 open
Art Institute of Chicago

Priest and Boy

Lawrence Carmichael Earle American, 1845-1921

0% similarityCheck object rights; API metadata is open
Art Institute of Chicago

A Sunday on La Grande Jatte — 1884

Georges Seurat (French, 1859–1891)

0% similarityCheck object rights; API metadata is open
Art Institute of Chicago

Fishing Craft near the Cliffs at Collioure

Adolphe Appian French, 1818-1898

0% similarityCheck object rights; API metadata is open
Art Institute of Chicago

Interior of St. Mark's, Venice

David Dalhoff Neal (American, 1838–1915)

0% similarityCheck object rights; API metadata is open
Art Institute of Chicago

Nighthawks

Edward Hopper (American, 1882–1967)

0% similarityCheck object rights; API metadata is open
Art Institute of Chicago

Lion (One of a Pair, South Pedestal)

Edward Kemeys (American, 1843–1907) American Bronze Founding Company (American, founded 1886) Chicago

0% similarityCheck object rights; API metadata is open
Art Institute of Chicago

American Gothic

Grant Wood (American, 1891–1942)

0% similarityCheck object rights; API metadata is open
Art Institute of Chicago

The Fall of the Giants

Salvator Rosa Italian, 1615-1673

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons

Automatic signature module

Every artwork image is checked for signatures and marks

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.

Candidate regions0
Signature regions0
AI enrichmentLocal only
PipelineNot run

No automatic mark result yet

The module runs during normal analysis when a local image is available.

Marks laboratory

Isolate and identify signatures, hallmarks and maker marks

110 independent methods generate cleanup variants, stroke and symbol descriptors, library matches, trust controls and conflict warnings.

Open mark library

Match an unknown mark

Upload the tightest available crop. Include a little surrounding surface so the system can separate paint, engraving, glare and background.

Add a known reference

Signature forensics

Check consistency with known genuine variation

This does not declare a signature genuine. It measures fit against a multi-source reference set, confusing signers and natural variation.

No forensic check yet

Run mark matching first, then compare the questioned signature against a sufficiently broad trusted reference set.

Open command centerDashboard Open specialist model labModels Show extreme candidatesFilter Show priority reviewsFilter