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GUNNAR ANDER. bordsflaggstång, mässing, Ystad Metall.

Gunnar Ander · Silver and metalware · Halmstads Auktionskammare

Open auction lot
51
research

Acquisition position

Current all in cost

450.0 SEK
Current bid or estimate300.0 SEK
Modelled discount61.2%
Liquidity score84%

Potential market value

Specialist value interval

600 to 2200 SEK
Value confidence74%
Comparable sales30

Evidence strength

38%
Identity confidence27%
Visual match0%
External references12

Market anomaly

67%
Information gap67%
Potential undervaluation61.2%

Risk profile

8%
Authenticity risk8%
Condition risk6%

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

  • missing hallmarks
  • missing fineness
  • missing weight
  • missing date_letter

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistGunnar Ander
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
Conditionbruksslitage.
ProvenanceMissing
Modelsilver_metalware_specialist 2.0.0

h 52 cm.

Identity resolution

Artist and maker hypotheses

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

4 candidates
1 independent sources

Anders Zorn Swedish, 1860-1920

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

26% combined confidence
1 independent sources

Anders Leonard Zorn (Swedish, 1860–1920)

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

26% combined confidence
1 independent sources

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

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

25% combined confidence
1 independent sources

Lissy Funk (Swiss, born Germany, 1909–2005) Executed at Lissy Funk Studio Switzerland, Zürich

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

Mrs. Potter Palmer

Anders Leonard Zorn (Swedish, 1860–1920)

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

Nude Girl in Doorway

Anders Leonard Zorn (Swedish, 1860–1920)

0% similarityCheck object rights; API metadata is open
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

"La Grande Baigneuse" - The Great Bather

Anders Zorn Swedish, 1860-1920

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

Storm

Anders Zorn Swedish, 1860-1920

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

Augustus Saint Gaudens II (Saint Gaudens and his model)

Anders Zorn Swedish, 1860-1920

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

Das andere Land (The Other Land)

Lissy Funk (Swiss, born Germany, 1909–2005) Executed at Lissy Funk Studio Switzerland, Zürich

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

Maria Sheldon Scammon

Anders Leonard Zorn (Swedish, 1860–1920)

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

Spanish Woman

Anders Zorn Swedish, 1860-1920

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

Portrait Study of a Man

Anders Leonard Zorn (Swedish, 1860–1920)

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

A Painter-Etcher (Self-Portrait)

Anders Zorn Swedish, 1860-1920

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

Sappo

Anders Zorn Swedish, 1860-1920

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons
1510567%300.0 SEKidentity 100%, material 45%, size 62%, title 87%, hallmarks 45%, weight 62%
326866%300.0 SEKidentity 100%, material 45%, size 62%, title 80%, hallmarks 45%, weight 62%
363266%800.0 SEKidentity 100%, material 45%, size 62%, title 80%, hallmarks 45%, weight 62%
1650666%1900.0 SEKidentity 100%, material 45%, size 62%, title 74%, hallmarks 45%, weight 62%
1545866%1400.0 SEKidentity 100%, material 45%, size 62%, title 68%, hallmarks 45%, weight 62%
1488166%800.0 SEKidentity 100%, material 45%, size 62%, title 68%, hallmarks 45%, weight 62%
720657%2200.0 SEKidentity 72%, material 45%, size 62%, title 51%, hallmarks 45%, weight 62%
1998955%550.0 SEKidentity 67%, material 45%, size 62%, title 45%, hallmarks 45%, weight 62%

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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