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GEORG JENSEN. Ring, Sterlingsilver, design Henning Koppel, modell nr 125.

Georg Jensen · Jewelry · Limhamns Auktionsbyrå

Open auction lot
19
low priority

Acquisition position

Current all in cost

2125.0 SEK
Current bid or estimate1500.0 SEK
Modelled discount0.0%
Liquidity score88%

Potential market value

Specialist value interval

295 to 950 SEK
Value confidence69%
Comparable sales30

Evidence strength

36%
Identity confidence27%
Visual match0%
External references12

Market anomaly

0%
Information gap71%
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 marks
  • missing metal
  • missing gemstones
  • missing weight
  • missing measurements

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistGeorg Jensen
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionFint skick.
ProvenanceMissing
Modeljewelry_specialist 2.0.0

Diameter 15,25 Vikt 9,7 gram.

Identity resolution

Artist and maker hypotheses

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

12 candidates
1 independent sources

Wendel Dietterlin Austrian, c. 1550-1599

Visual 0% · Name 46% · Marks 25% · Material 40%

26% combined confidence
1 independent sources

Greek, minted in Tyre

Visual 0% · Name 45% · Marks 25% · Material 40%

26% combined confidence
1 independent sources

Henri Laurens (French, 1885-1954) written by Lucian (Syrian, 125-180 A.D.) published by Tériade Éditeur (French, 20th century) translated by Émile Chambry (French, 20th century)

Visual 0% · Name 45% · Marks 25% · Material 40%

26% combined confidence
1 independent sources

Roman, minted in Rome

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

25% combined confidence
1 independent sources

Joe Zucker American, 1941-2024

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

25% combined confidence
1 independent sources

Daniel Hudson Burnham, American, 1846-1912 Edward Herbert Bennett, American, born England, 1874-1954

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

25% combined confidence
1 independent sources

Namiki Hajime Japanese, born 1947

Visual 0% · Name 37% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Maxime Du Camp (French, 1822–1894) and Aimé Rochas (French, 19th century)

Visual 0% · Name 37% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Produced by the Wiener Werkstätte (Vienna, active 1903–1932) Vienna, Austria

Visual 0% · Name 37% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Fred Sandback American, 1943-2003

Visual 0% · Name 37% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Maxime Du Camp (French, 1822–1894) printed by the Imprimerie Photographique de Blanquart-Evrard (French, founded 1851)

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

24% combined confidence
1 independent sources

Takuma Nakahira Japanese, 1938-2015

Visual 0% · Name 34% · 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

Sample Book Containing 125 Swatches

Produced by the Wiener Werkstätte (Vienna, active 1903–1932) Vienna, Austria

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

Joe's Painting #125

Joe Zucker American, 1941-2024

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

Egypte, Nubie, Palestine et Syrie

Maxime Du Camp (French, 1822–1894) and Aimé Rochas (French, 19th century)

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

Untitled (No. 125 from 133 proposals for Heiner Friedrich Gallery)

Fred Sandback American, 1943-2003

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

Fantastic Architecture, plate 36 (later 44, and 125) from Architectura

Wendel Dietterlin Austrian, c. 1550-1599

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

Tree Scene 96

Namiki Hajime Japanese, born 1947

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

Plate 125 from The Plan of Chicago, 1909: Chicago. Elevation of Grant Park and Harbor; the Eastern Facade of the City on Michigan Avenue, and the Dome of the Administration Building of the Civic Center, Looking from Lake Michigan.

Daniel Hudson Burnham, American, 1846-1912 Edward Herbert Bennett, American, born England, 1874-1954

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

Untitled [from Circulation, October 12 #125]

Takuma Nakahira Japanese, 1938-2015

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

Tetradrachm (Coin) Portraying Demetrius II Nikator of Syria

Greek, minted in Tyre

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

As (Coin) Portraying Emperor Hadrian

Roman, minted in Rome

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

Temple De Jupiter à Baalbeck (Héliopolis, Intérieur Du Naos; Syrie

Maxime Du Camp (French, 1822–1894) printed by the Imprimerie Photographique de Blanquart-Evrard (French, founded 1851)

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

Lucius or the Donkey (Loukios ou L’Ane)

Henri Laurens (French, 1885-1954) written by Lucian (Syrian, 125-180 A.D.) published by Tériade Éditeur (French, 20th century) translated by Émile Chambry (French, 20th century)

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons
965766%932.0 SEKidentity 100%, material 45%, size 62%, title 87%, hallmarks 45%, weight 62%
588665%950.0 SEKidentity 100%, material 45%, size 62%, title 78%, hallmarks 45%, weight 62%
233950%300.0 SEKidentity 45%, material 45%, size 62%, title 100%, hallmarks 45%, weight 62%
238850%300.0 SEKidentity 45%, material 45%, size 62%, title 100%, hallmarks 45%, weight 62%
245650%300.0 SEKidentity 45%, material 45%, size 62%, title 100%, hallmarks 45%, weight 62%
167550%3400.0 SEKidentity 52%, material 45%, size 62%, title 59%, hallmarks 45%, weight 62%
200850%1100.0 SEKidentity 52%, material 45%, size 62%, title 59%, hallmarks 45%, weight 62%
298550%400.0 SEKidentity 45%, material 45%, size 62%, title 100%, 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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