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CATHINKA OLSEN. skålfat, blåglaserat stengods, unikat, B&G.

Cathinka Olsen · Ceramics and porcelain · Halmstads Auktionskammare

Open auction lot
46
research

Acquisition position

Current all in cost

600.0 SEK
Current bid or estimate300.0 SEK
Modelled discount54.0%
Liquidity score80%

Potential market value

Specialist value interval

407 to 2600 SEK
Value confidence69%
Comparable sales30

Evidence strength

38%
Identity confidence32%
Visual match0%
External references12

Market anomaly

56%
Information gap67%
Potential undervaluation54.0%

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 factory
  • missing material
  • missing mark
  • missing dimensions

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistCathinka Olsen
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionInga anmärkningar.
ProvenanceMissing
Modelceramics_specialist 2.0.0

reliefdekor av blommor mm, signerat dia 29, h 5 cm Has resale rights.

Identity resolution

Artist and maker hypotheses

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

12 candidates
1 independent sources

Monogrammist b. g. German, active c. 1470–90

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

33% combined confidence
1 independent sources

Monogrammist b. g. German, active about 1470–90

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

33% combined confidence
1 independent sources

Monagrammist b. g. (German, active c. 1470–90) after Master of the Housebook (German, active c. 1470-1500)

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

33% combined confidence
1 independent sources

Nasca Nazca Valley, south coast, Peru

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

25% combined confidence
1 independent sources

Krueck & Olsen Architects (American, 1978–1990) Ronald Krueck (American, born 1946) Mark Sexton (American, born 1956) Nicholas Merrick (American, born 1954)

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

25% combined confidence
1 independent sources

South German, Nuremberg

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

25% combined confidence
1 independent sources

South German; Augsburg

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

25% combined confidence
1 independent sources

Krueck & Olsen Architects (American, 1978–1990) Ronald Krueck (American, born 1946) Mark Sexton (American, born 1956)

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

25% combined confidence
1 independent sources

Nyamwezi Sikonge, Tanzania Eastern and Southern Africa

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

25% combined confidence
1 independent sources

Greek; Athens

Visual 0% · Name 33% · Marks 25% · Material 40%

24% combined confidence
1 independent sources

Western European

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

23% combined confidence
1 independent sources

Belgium

Visual 0% · Name 26% · 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

Celia L. Marriott Apartment, Chicago, Illinois, Interior Perspective

Krueck & Olsen Architects (American, 1978–1990) Ronald Krueck (American, born 1946) Mark Sexton (American, born 1956) Nicholas Merrick (American, born 1954)

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

Celia L. Marriott Apartment, Chicago, Illinois, Isometric

Krueck & Olsen Architects (American, 1978–1990) Ronald Krueck (American, born 1946) Mark Sexton (American, born 1956)

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

Field Armor for Man

South German, Nuremberg

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

The Music Making Couple

Monogrammist b. g. German, active c. 1470–90

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

Elements of a Half Armor for Foot Tournament at the Barriers

South German; Augsburg

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

Tassels

Nasca Nazca Valley, south coast, Peru

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

The Old Woman and The Fool in a Window

Monogrammist b. g. German, active about 1470–90

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

Boy's Armor

Western European

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

Female Figure

Nyamwezi Sikonge, Tanzania Eastern and Southern Africa

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

Seven Borders

Belgium

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

Coat of Arms of Rohrbach and Eilge von Holzhausen

Monagrammist b. g. (German, active c. 1470–90) after Master of the Housebook (German, active c. 1470-1500)

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

Pyxis (Container for Personal Objects)

Greek; Athens

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons
102449%6510.0 SEKidentity 48%, material 45%, size 62%, title 58%, factory marks 45%
973449%407.0 SEKidentity 52%, material 45%, size 62%, title 40%, factory marks 45%
91649%300.0 SEKidentity 48%, material 45%, size 62%, title 55%, factory marks 45%
315549%1228.0 SEKidentity 48%, material 45%, size 62%, title 54%, factory marks 45%
265549%5133.0 SEKidentity 48%, material 45%, size 62%, title 53%, factory marks 45%
613949%5900.0 SEKidentity 48%, material 45%, size 62%, title 54%, factory marks 45%
851849%1287.0 SEKidentity 48%, material 45%, size 62%, title 54%, factory marks 45%
457649%666.0 SEKidentity 48%, material 45%, size 62%, title 51%, 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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