← Back to command center

KARIN BJÖRQUIST. Vas, stengods, Gustavsberg Studio, Prunella.

Karin Björquist · Ceramics and porcelain · Karlstad Hammarö Auktionsverk

Open auction lot
44
low priority

Acquisition position

Current all in cost

360.27 SEK
Current bid or estimate250.0 SEK
Modelled discount43.5%
Liquidity score80%

Potential market value

Specialist value interval

300 to 868 SEK
Value confidence70%
Comparable sales30

Evidence strength

38%
Identity confidence32%
Visual match0%
External references12

Market anomaly

47%
Information gap67%
Potential undervaluation43.5%

Risk profile

8%
Authenticity risk8%
Condition risk6%

Investigation rationale

Why this may be worth considering

  • maker or artist identity supplied
  • Large gap to recent market history

Decision guardrails

What must be verified

  • missing factory
  • missing material
  • missing mark
  • missing dimensions

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistKarin Björquist
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionSmärre ytslitage.
ProvenanceMissing
Modelceramics_specialist 2.0.0

Höjd 19 cm.

Identity resolution

Artist and maker hypotheses

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

11 candidates
1 independent sources

Studio of François Boucher French, 1703-1770

Visual 0% · Name 86% · Marks 25% · Material 40%

33% combined confidence
1 independent sources

Wucius Wong Chinese, born 1936

Visual 0% · Name 44% · Marks 25% · Material 40%

26% combined confidence
1 independent sources

Tiffany Studios (American, 1902–32) Corona, New York

Visual 0% · Name 41% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Designed by Larsen Design Studio (American, 1958-1997) Produced by Jack Lenor Larsen, Inc. (American, 1952-1997) France

Visual 0% · Name 39% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Claire Zeisler (American, 1903-1991) Chicago, Illinois, United States

Visual 0% · Name 39% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Milton Avery (American, 1885–1965)

Visual 0% · Name 36% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Alberto Giacometti Swiss, 1901–1966

Visual 0% · Name 36% · Marks 25% · Material 40%

24% combined confidence
1 independent sources

James McNeill Whistler (American, 1834–1903)

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

24% combined confidence
1 independent sources

Roy Lichtenstein American, 1923–1997

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

24% combined confidence
1 independent sources

Attributed to the workshop of Pierre Reymond French, 1513-after 1584

Visual 0% · Name 33% · Marks 25% · Material 40%

24% combined confidence
1 independent sources

Honoré Victorin Daumier French, 1808-1879

Visual 0% · Name 33% · Marks 25% · Material 40%

24% 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

Casket with Scenes of David and Solomon

Attributed to the workshop of Pierre Reymond French, 1513-after 1584

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

Lily Lamp

Tiffany Studios (American, 1902–32) Corona, New York

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

Malbroug s'en va-t-en Guerre...

Honoré Victorin Daumier French, 1808-1879

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

Artist's Studio "Foot Medication"

Roy Lichtenstein American, 1923–1997

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

The Studio

Alberto Giacometti Swiss, 1901-1966

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

Private Affair I

Claire Zeisler (American, 1903-1991) Chicago, Illinois, United States

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

Study after Apollo Revealing his Divinity before the Shepherdess Isse

Studio of François Boucher French, 1703-1770

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

Diego Seated in the Studio

Alberto Giacometti Swiss, 1901–1966

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

Conversation in Studio

Milton Avery (American, 1885–1965)

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

The Artist in His Studio

James McNeill Whistler (American, 1834–1903)

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

Wintertree (Furnishing Fabric)

Designed by Larsen Design Studio (American, 1958-1997) Produced by Jack Lenor Larsen, Inc. (American, 1952-1997) France

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

Artist's Studio

Wucius Wong Chinese, born 1936

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons
1560665%350.0 SEKidentity 100%, material 45%, size 62%, title 66%, factory marks 45%
108565%12500.0 SEKidentity 100%, material 45%, size 62%, title 54%, factory marks 45%
1638852%300.0 SEKidentity 60%, material 45%, size 62%, title 53%, factory marks 45%
835152%250.0 SEKidentity 61%, material 45%, size 62%, title 44%, factory marks 45%
874652%1000.0 SEKidentity 59%, material 45%, size 62%, title 45%, factory marks 45%
878951%300.0 SEKidentity 59%, material 45%, size 62%, title 42%, factory marks 45%
1405050%299.0 SEKidentity 48%, material 45%, size 62%, title 63%, factory marks 45%
1603749%400.0 SEKidentity 45%, material 45%, size 62%, title 71%, factory marks 45%

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