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JONAS FRÖDING (1905-1959). Skolbarn, brons, signerad J Fröding, monterad på stensockel.

Jonas Fröding · Sculpture · Stockholms Auktionsverk Magasin 5

Open auction lot
18
low priority

Acquisition position

Current all in cost

4100.0 SEK
Current bid or estimate4100.0 SEK
Modelled discount0.0%
Liquidity score68%

Potential market value

Specialist value interval

500 to 3030 SEK
Value confidence68%
Comparable sales30

Evidence strength

38%
Identity confidence32%
Visual match0%
External references12

Market anomaly

0%
Information gap67%
Potential undervaluation0.0%

Risk profile

8%
Authenticity risk8%
Condition risk6%

Investigation rationale

Why this may be worth considering

  • maker or artist identity supplied

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

ArtistJonas Fröding
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionGott skick.
ProvenanceMissing
Modelsculpture_specialist 2.0.0

Höjd inkl sockel ca 19 cm Has resale rights.

Identity resolution

Artist and maker hypotheses

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

7 candidates
1 independent sources

Jonas Lie (American, 1880–1940)

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

33% combined confidence
1 independent sources

Jonas Dovydenas American, born Lithuania, 1939-2025

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

33% combined confidence
1 independent sources

Jonas Welch Holman American, 1805–1873

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

33% combined confidence
1 independent sources

Jonas Suyderhoef (Dutch, c. 1613-1686) after Gerard ter Borch, the younger (Dutch, 1617-1681)

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

33% combined confidence
1 independent sources

Charles Ray American, born 1953

Visual 0% · Name 43% · Marks 25% · Material 40%

26% combined confidence
1 independent sources

North German

Visual 0% · Name 30% · Marks 25% · Material 40%

23% combined confidence
1 independent sources

German, Augsburg

Visual 0% · Name 28% · Marks 25% · Material 40%

23% 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

Afterglow

Jonas Lie (American, 1880–1940)

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

Hinoki

Charles Ray American, born 1953

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

Iron Worker, Chicago

Jonas Dovydenas American, born Lithuania, 1939-2025

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

Evel Knievel, Chicago International Amphitheatre

Jonas Dovydenas American, born Lithuania, 1939-2025

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

Field Armor

German, Augsburg

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

Man with a Pen

Jonas Welch Holman American, 1805–1873

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

Cook County Jail, Chicago

Jonas Dovydenas American, born Lithuania, 1939-2025

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

Woman with a Book

Jonas Welch Holman American, 1805–1873

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

Old Timers, Elko, Nevada

Jonas Dovydenas American, born Lithuania, 1939-2025

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

Cook County Jail, Chicago

Jonas Dovydenas American, born Lithuania, 1939-2025

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

Infantry Armor

North German

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

Three Men Struggling in an Interior

Jonas Suyderhoef (Dutch, c. 1613-1686) after Gerard ter Borch, the younger (Dutch, 1617-1681)

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons
1129569%1700.0 SEKidentity 100%, material 45%, size 62%, title 61%, foundry or marks 45%
1426651%2800.0 SEKidentity 54%, material 45%, size 62%, title 53%, foundry or marks 45%
1666050%1100.0 SEKidentity 52%, material 45%, size 62%, title 46%, foundry or marks 45%
1714048%1313.0 SEKidentity 45%, material 45%, size 62%, title 60%, foundry or marks 45%
1002948%17000.0 SEKidentity 48%, material 45%, size 62%, title 47%, foundry or marks 45%
239548%3301.0 SEKidentity 46%, material 45%, size 62%, title 54%, foundry or marks 45%
1324148%600.0 SEKidentity 47%, material 45%, size 62%, title 48%, foundry or marks 45%
1206148%2604.0 SEKidentity 45%, material 45%, size 62%, title 58%, 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.

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