← Back to command center

THERESIA HVORSLEV. RING, Silver, signerad.

Theresia Hvorslev · Jewelry · Auktionshuset STO Bohuslän

Open auction lot
20
low priority

Acquisition position

Current all in cost

1693.31 SEK
Current bid or estimate1300.0 SEK
Modelled discount0.0%
Liquidity score88%

Potential market value

Specialist value interval

300 to 725 SEK
Value confidence68%
Comparable sales30

Evidence strength

38%
Identity confidence32%
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

ArtistTheresia Hvorslev
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionPatina.
ProvenanceMissing
Modeljewelry_specialist 2.0.0

Justerbar storlek Vikt 12,43 gram.

Identity resolution

Artist and maker hypotheses

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

10 candidates
1 independent sources

Barbour Silver Co., Division of International Silver Company (American, 1892–1931) Chasing by Christopher M. Whalen (American, 1867–1932) Meriden, Connecticut

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

33% combined confidence
1 independent sources

Designed by Arthur Silver (English, 1853-1896) Produced by Silver Studio Sold by Liberty & Co. Ltd. France, Alsace

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

26% combined confidence
1 independent sources

George Inness (American, 1825–1894)

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

25% combined confidence
1 independent sources

Designed by Silver Studio, 1880–1963 Produced by Liberty and Co., founded 1875 England, London

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

25% combined confidence
1 independent sources

Arthur Dove (American, 1880–1946)

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

25% combined confidence
1 independent sources

Felix Gonzalez-Torres American, born Cuba, 1957–1996

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

25% combined confidence
1 independent sources

Victor Dubreuil American, born France, 1842–after 1910

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

25% combined confidence
1 independent sources

James McNeill Whistler (American, 1834–1903)

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

25% combined confidence
1 independent sources

Greek

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

24% combined confidence
1 independent sources

Egyptian

Visual 0% · Name 22% · Marks 25% · Material 40%

22% 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

Ring with a Scarab Bezel

Egyptian

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

Silver Sun

Arthur Dove (American, 1880–1946)

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

Coffee Set with Tray

Barbour Silver Co., Division of International Silver Company (American, 1892–1931) Chasing by Christopher M. Whalen (American, 1867–1932) Meriden, Connecticut

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

"Untitled" (Silver Beach)

Felix Gonzalez-Torres American, born Cuba, 1957–1996

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

A Silver Morning

George Inness (American, 1825–1894)

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

Silver Tanks

Arthur Dove (American, 1880–1946)

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

Fleurs Stylises

Designed by Arthur Silver (English, 1853-1896) Produced by Silver Studio Sold by Liberty & Co. Ltd. France, Alsace

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

Ayesha

Designed by Silver Studio, 1880–1963 Produced by Liberty and Co., founded 1875 England, London

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

Grey and Silver: Old Battersea Reach

James McNeill Whistler (American, 1834–1903)

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

Violet and Silver—The Deep Sea

James McNeill Whistler (American, 1834–1903)

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

One Dollar Silver Certificate

Victor Dubreuil American, born France, 1842–after 1910

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

Finger Ring Depicting Aphrodite

Greek

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons
1723565%900.0 SEKidentity 100%, material 45%, size 62%, title 80%, hallmarks 45%, weight 62%
1939650%300.0 SEKidentity 45%, material 45%, size 62%, title 100%, hallmarks 45%, weight 62%
116350%300.0 SEKidentity 50%, material 45%, size 62%, title 53%, hallmarks 45%, weight 62%
723950%14100.0 SEKidentity 51%, material 45%, size 62%, title 42%, hallmarks 45%, weight 62%
1011449%300.0 SEKidentity 45%, material 45%, size 62%, title 76%, hallmarks 45%, weight 62%
129949%490.0 SEKidentity 45%, material 45%, size 62%, title 71%, hallmarks 45%, weight 62%
1489249%457.0 SEKidentity 45%, material 45%, size 62%, title 67%, hallmarks 45%, weight 62%
1418148%300.0 SEKidentity 45%, material 45%, size 62%, title 59%, 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.

Open command centerDashboard Open specialist model labModels Show extreme candidatesFilter Show priority reviewsFilter