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GUNNAR HANSSON. väggtavla, keramik, tupp med höna i relief.

Gunnar Hansson · Ceramics and porcelain · Markus Auktioner

Open auction lot
44
low priority

Acquisition position

Current all in cost

300.0 SEK
Current bid or estimate200.0 SEK
Modelled discount59.9%
Liquidity score80%

Potential market value

Specialist value interval

300 to 1355 SEK
Value confidence72%
Comparable sales30

Evidence strength

39%
Identity confidence32%
Visual match0%
External references12

Market anomaly

64%
Information gap67%
Potential undervaluation59.9%

Risk profile

13%
Authenticity risk13%
Condition risk34%

Investigation rationale

Why this may be worth considering

  • maker or artist identity supplied
  • auction estimate is materially below the specialist model
  • all in acquisition cost is at least 55 percent below modelled value

Decision guardrails

What must be verified

  • condition wording: spricka
  • condition wording: saknas
  • category trap check: later factory mark
  • missing factory
  • missing material
  • missing mark
  • missing dimensions

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistGunnar Hansson
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionBruks- och åldersrelaterat slitage. Ett upphängningshål baktill saknas samt en mindre spricka.
ProvenanceMissing
Modelceramics_specialist 2.0.0

Signerad. 38x28 cm.

Identity resolution

Artist and maker hypotheses

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

9 candidates
1 independent sources

Gunnar Lundberg American, born Sweden, 20th century

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

33% combined confidence
1 independent sources

Nairy Baghramian German, born Iran, 1971

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

25% combined confidence
1 independent sources

German or Austrian

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

25% combined confidence
1 independent sources

Charles Green Shaw American, 1892–1974

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

25% combined confidence
1 independent sources

Lan Ying (Chinese, 1585-c. 1664)

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

25% combined confidence
1 independent sources

Louis H. Sullivan American, 1856-1924

Visual 0% · Name 38% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Unknown Artist American, 20th century

Visual 0% · Name 38% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Roman

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

24% combined confidence
1 independent sources

Edvard Munch (Norwegian, 1863-1944) printed by Lassally (German, late 19th-early 20th century)

Visual 0% · Name 35% · 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

Gunnar Heiberg

Edvard Munch (Norwegian, 1863-1944) printed by Lassally (German, late 19th-early 20th century)

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

Elevator Grille from the Chicago Stock Exchange, Chicago, Illinois

Louis H. Sullivan American, 1856-1924

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

Landscape in the Style of Ancient Masters: Artist's commentary

Lan Ying (Chinese, 1585-c. 1664)

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

Breaking Through

Gunnar Lundberg American, born Sweden, 20th century

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

Elements of Composite Armor

German or Austrian

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

Slip of the Tongue

Nairy Baghramian German, born Iran, 1971

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

Untitled

Gunnar Lundberg American, born Sweden, 20th century

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

Galena, Illinois

Gunnar Lundberg American, born Sweden, 20th century

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

Untitled

Gunnar Lundberg American, born Sweden, 20th century

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

Relief

Charles Green Shaw American, 1892–1974

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

Relief of a Falling Warrior

Roman

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

Thrill to the Heroic Struggle on "Our Russian Front"

Unknown Artist American, 20th century

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons
299765%350.0 SEKidentity 100%, material 45%, size 62%, title 58%, factory marks 45%
236664%300.0 SEKidentity 100%, material 45%, size 62%, title 53%, factory marks 45%
421264%450.0 SEKidentity 100%, material 45%, size 62%, title 50%, factory marks 45%
566561%400.0 SEKidentity 87%, material 45%, size 62%, title 57%, factory marks 45%
1431860%300.0 SEKidentity 87%, material 45%, size 62%, title 52%, factory marks 45%
784360%300.0 SEKidentity 87%, material 45%, size 62%, title 52%, factory marks 45%
762154%300.0 SEKidentity 67%, material 45%, size 62%, title 53%, factory marks 45%
381254%876.0 SEKidentity 67%, material 45%, size 62%, title 47%, 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.

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