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ETT PAR BORDSLAMPOR.

Ett Par Bordslampor · Art glass · Björnssons Auktionskammare

Open auction lot
50
research

Acquisition position

Current all in cost

500.0 SEK
Current bid or estimate350.0 SEK
Modelled discount60.3%
Liquidity score76%

Potential market value

Specialist value interval

300 to 1727 SEK
Value confidence68%
Comparable sales30

Evidence strength

36%
Identity confidence27%
Visual match0%
External references14

Market anomaly

65%
Information gap67%
Potential undervaluation60.3%

Risk profile

8%
Authenticity risk8%
Condition risk18%

Investigation rationale

Why this may be worth considering

  • maker or artist identity supplied
  • auction estimate is materially below the specialist model
  • all in acquisition cost is at least 55 percent below modelled value
  • Estimate materially below specialist value
  • Weak catalogue discovery
  • very short catalogue title may reduce bidder discovery

Decision guardrails

What must be verified

  • condition wording: saknas
  • missing factory
  • missing signature
  • missing model
  • missing dimensions

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistEtt Par Bordslampor
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionBruks- och åldersrelaterat slitage. Små "pennstreck". Etikettrester. Stickproppar saknas. Två olika topp-knoppar. Ej funktionstestade, ingen funktionsgaranti lämnas.
ProvenanceMissing
Modelglass_specialist 2.0.0

Bemålat glas. Höjd: ca 80cm.

Identity resolution

Artist and maker hypotheses

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

6 candidates
1 independent sources

Manufactured by Favre-Petitpierre et Cie. (French, 1802-1818) France, Nantes

Visual 0% · Name 34% · Marks 25% · Material 40%

24% combined confidence
1 independent sources

Jean Louis Forain French, 1852-1931

Visual 0% · Name 34% · Marks 25% · Material 0%

19% combined confidence
1 independent sources

François Denis Née

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

19% combined confidence
1 independent sources

Honoré Victorin Daumier French, 1808-1879

Visual 0% · Name 32% · Marks 25% · Material 0%

19% combined confidence
1 independent sources

Jean-Eugène-Auguste Atget French, 1857–1927

Visual 0% · Name 31% · Marks 25% · Material 0%

18% combined confidence
1 independent sources

Johannes Vermeer

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

18% 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

14 references
The Met Open Access

A Maid Asleep

Johannes Vermeer

0% similarityCC0 when isPublicDomain is trueThe Met Open Access

Choice of Songs put into Music by M. de la Borde

François Denis Née

0% similarityCC0 when isPublicDomain is trueArt Institute of Chicago

Achille reconnu par Ullysse (Achilles Recognized by Ulysses) (Furnishing Fabric)

Manufactured by Favre-Petitpierre et Cie. (French, 1802-1818) France, Nantes

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

Versailles, Vase par Cornu

Jean-Eugène-Auguste Atget French, 1857–1927

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

Versailles, Enlèvement de Proserpine par Pluton par Girardon, (detail)

Jean-Eugène-Auguste Atget French, 1857–1927

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

Versailles, Vase par Cornu

Jean-Eugène-Auguste Atget French, 1857–1927

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

Versailles, Le Rhone par Tuby

Jean-Eugène-Auguste Atget French, 1857–1927

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

Versailles, L'Eau par Legras

Jean-Eugène-Auguste Atget French, 1857–1927

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

Versailles, Vase par Ballin

Jean-Eugène-Auguste Atget French, 1857–1927

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

Versailles, Girardon, Enlevement de Proserpine par Pluton

Jean-Eugène-Auguste Atget French, 1857–1927

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

Versailles, Vase par Cornu

Jean-Eugène-Auguste Atget French, 1857–1927

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

No. 78: L'agression bulgare. - Mais par où êtes-vous venu? - Par la Cour.

Jean Louis Forain French, 1852-1931

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

Versailles, Grand Trianon (Vase par Le Lorrain)

Jean-Eugène-Auguste Atget French, 1857–1927

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

“- Still more Venuses this year... always Venuses!... as if there were any women built like that!,” plate 2 from Croquis Pris Au Salon par Daumier

Honoré Victorin Daumier French, 1808-1879

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons
2068151%1200.0 SEKidentity 45%, material 45%, size 62%, title 100%, factory marks 45%
1422951%1000.0 SEKidentity 45%, material 45%, size 62%, title 100%, factory marks 45%
1441851%350.0 SEKidentity 45%, material 45%, size 62%, title 100%, factory marks 45%
15951%507.0 SEKidentity 45%, material 45%, size 62%, title 100%, factory marks 45%
913851%500.0 SEKidentity 45%, material 45%, size 62%, title 100%, factory marks 45%
1145549%700.0 SEKidentity 40%, material 45%, size 62%, title 100%, factory marks 45%
1419749%650.0 SEKidentity 45%, material 45%, size 62%, title 73%, factory marks 45%
1001548%1143.0 SEKidentity 40%, material 45%, size 62%, title 88%, 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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