← Back to command center

ARMBAND samt COLLIER, 3 delar.

Unknown maker or artist · Jewelry · Borås Auktionshall

Open auction lot
0
low priority

Acquisition position

Current all in cost

510.0 SEK
Current bid or estimate300.0 SEK
Modelled discount0.0%
Liquidity score88%

Potential market value

Specialist value interval

Not calculated
Value confidence0%
Comparable sales0

Evidence strength

14%
Identity confidence29%
Visual match0%
External references12

Market anomaly

0%
Information gap86%
Potential undervaluation0.0%

Risk profile

8%
Authenticity risk8%
Condition risk6%

Investigation rationale

Why this may be worth considering

  • No positive signals have been confirmed yet.

Decision guardrails

What must be verified

  • missing maker
  • missing marks
  • missing metal
  • missing gemstones
  • missing weight
  • missing measurements

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistMissing
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionBruksslitage.
ProvenanceMissing
Modeljewelry_specialist 2.0.0

Collier längd ca 50 cm.

Identity resolution

Artist and maker hypotheses

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

12 candidates
1 independent sources

Eliel Saarinen (American, born Finland, 1873–1950) J. Robert F. Swanson (American, 1900–1981) Pipsan Saarinen Swanson (American, 1905–1979) Made by Johnson Furniture Company (American, 1908–1983) Grand Rapids, Michigan

Visual 0% · Name 42% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Asante Ghana Coastal West Africa

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

25% combined confidence
1 independent sources

Robert Riddle Jarvie (American, 1865–1941) The Jarvie Shop (American, c. 1900–17) Chicago

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

25% combined confidence
1 independent sources

Nicholas Africano American, born 1948

Visual 0% · Name 38% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Uta Barth German, born 1958

Visual 0% · Name 38% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Mary Catherine Knight (American, 1875–1956) Made by the Handicraft Shop (American, 1901–c. 1940) Boston

Visual 0% · Name 38% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Robert Heinecken American, 1931–2006

Visual 0% · Name 38% · Marks 25% · Material 40%

25% combined confidence
1 independent sources

Sèvres Porcelain Manufactory French, founded 1740 Painted by André-Vincent Vielliard (French, 1717-90, active 1752-90)

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

25% combined confidence
1 independent sources

Greg Lynn American, born 1964

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

25% combined confidence
1 independent sources

Adolphe Braun French, 1811–1877

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

24% combined confidence
1 independent sources

Webster Manufacturing Company (American, 1866–74) Brooklyn, New York

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

24% combined confidence
1 independent sources

Kobayashi Kiyochika Japanese, 1847-1915

Visual 0% · Name 33% · 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

Linguist Staff with Rooster and Hen (Okyeame Poma)

Asante Ghana Coastal West Africa

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

China Boy

Nicholas Africano American, born 1948

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

Punch Bowl, Ladle, and Tray

Robert Riddle Jarvie (American, 1865–1941) The Jarvie Shop (American, c. 1900–17) Chicago

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

The S.S. Copyright Project "On Photography"

Robert Heinecken American, 1931–2006

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

Landscape, Switzerland

Adolphe Braun French, 1811–1877

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

Carbon Net Chair

Greg Lynn American, born 1964

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

Coffee or Tea Service

Webster Manufacturing Company (American, 1866–74) Brooklyn, New York

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

Sauce Set

Mary Catherine Knight (American, 1875–1956) Made by the Handicraft Shop (American, 1901–c. 1940) Boston

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

Nesting Tables

Eliel Saarinen (American, born Finland, 1873–1950) J. Robert F. Swanson (American, 1900–1981) Pipsan Saarinen Swanson (American, 1905–1979) Made by Johnson Furniture Company (American, 1908–1983) Grand Rapids, Michigan

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

Garniture of Three Flower Vases (Vases Hollandois)

Sèvres Porcelain Manufactory French, founded 1740 Painted by André-Vincent Vielliard (French, 1717-90, active 1752-90)

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

...and to draw a bright white line with light (Untitled 11.5), from the series "... and to draw a bright white line with light"

Uta Barth German, born 1958

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

Sei Shonagon, from the series Ancient Patterns (Kodai moyo)

Kobayashi Kiyochika Japanese, 1847-1915

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons

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