← Back to command center

JACOB ÄNGMAN. SKRIVBORDSSTÄLL, grönpatineard brons, art decó, GAB.

Jacob Ängman · Sculpture · Laholms Auktionskammare

Open auction lot
48
research

Acquisition position

Current all in cost

1400.0 SEK
Current bid or estimate1400.0 SEK
Modelled discount49.2%
Liquidity score68%

Potential market value

Specialist value interval

1350 to 3718 SEK
Value confidence72%
Comparable sales30

Evidence strength

40%
Identity confidence36%
Visual match0%
External references12

Market anomaly

64%
Information gap67%
Potential undervaluation49.2%

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
  • Estimate materially below specialist value

Decision guardrails

What must be verified

  • missing material
  • missing dimensions
  • missing foundry
  • missing edition

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistJacob Ängman
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionBruks- och åldersrelaterat slitage.
ProvenanceMissing
Modelsculpture_specialist 2.0.0

Längd ca 23 djup ca 12 höjd ca 10 cm.

Identity resolution

Artist and maker hypotheses

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

6 candidates
1 independent sources

Jacob Lawrence American, 1917-2000

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

33% combined confidence
1 independent sources

Jacob Halder (English, 1558–1608) Royal Workshops of Greenwich, England

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

33% combined confidence
1 independent sources

Jacob Ochtervelt (Dutch, 1634-1682)

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

33% combined confidence
1 independent sources

Jacob Jordaens Flemish, 1593-1678

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

33% combined confidence
1 independent sources

Jacob van Ruisdael (Dutch, 1628/29-1682)

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

33% combined confidence
1 independent sources

Rembrandt van Rijn Dutch, 1606-1669

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

25% 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

The Wedding

Jacob Lawrence American, 1917–2000

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

Portions of a Field Armor

Jacob Halder (English, 1558–1608) Royal Workshops of Greenwich, England

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

The Music Lesson

Jacob Ochtervelt (Dutch, 1634-1682)

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

Confrontation at the Bridge

Jacob Lawrence American, 1917-2000

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

The Builders

Jacob Lawrence American, 1917-2000

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

The Temptation of the Magdalene

Jacob Jordaens (Flemish, 1593-1678)

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

Free Clinic

Jacob Lawrence American, 1917-2000

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

Landscape with the Ruins of the Castle of Egmond

Jacob van Ruisdael (Dutch, 1628/29-1682)

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

Virginia Interior

Jacob Lawrence American, 1917-2000

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

Three Oriental Figures (Jacob and Laban?)

Rembrandt van Rijn Dutch, 1606-1669

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

Harlem Street Scene

Jacob Lawrence American, 1917-2000

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

Nude Old Man Seated, Leaning on His Forearm, Facing Left

Jacob Jordaens Flemish, 1593-1678

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons
92269%3003.0 SEKidentity 100%, material 45%, size 62%, title 62%, foundry or marks 45%
1535748%4250.0 SEKidentity 45%, material 45%, size 62%, title 59%, foundry or marks 45%
723048%3030.0 SEKidentity 45%, material 45%, size 62%, title 59%, foundry or marks 45%
1383148%2550.0 SEKidentity 45%, material 45%, size 62%, title 57%, foundry or marks 45%
97048%2209.0 SEKidentity 45%, material 45%, size 62%, title 57%, foundry or marks 45%
383948%1000.0 SEKidentity 45%, material 45%, size 62%, title 57%, foundry or marks 45%
489048%1913.0 SEKidentity 45%, material 45%, size 62%, title 58%, foundry or marks 45%
1451348%5000.0 SEKidentity 45%, material 45%, size 62%, title 56%, foundry or 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