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STANISLAVA KONRÁDOVÁ. Etsning, blomsterstilleben, numrerad 17/25, signerad, daterad -86.

Stanislava Konrádová · Prints and works on paper · Ekenbergs Auktioner

Open auction lot
51
research

Acquisition position

Current all in cost

500.0 SEK
Current bid or estimate200.0 SEK
Modelled discount65.5%
Liquidity score78%

Potential market value

Specialist value interval

300 to 3811 SEK
Value confidence68%
Comparable sales30

Evidence strength

36%
Identity confidence27%
Visual match0%
External references1

Market anomaly

62%
Information gap60%
Potential undervaluation65.5%

Risk profile

8%
Authenticity risk8%
Condition risk6%

Investigation rationale

Why this may be worth considering

  • maker or artist identity supplied
  • all in acquisition cost is at least 55 percent below modelled value

Decision guardrails

What must be verified

  • missing technique
  • missing edition
  • missing sheet_size

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistStanislava Konrádová
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionYtsmuts, slitet på ramen. Ej examinerad ur ram.
ProvenanceMissing
Modelworks_on_paper_specialist 2.0.0

Mått med ram ca 54x42,5 cm. Bildmått ca 36x27,5 cm.

Identity resolution

Artist and maker hypotheses

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

1 candidates
1 independent sources

H. C. Westermann (American, 1922-1981) printed by Robert Rogers published by Tamarind Lithography Workshop (American, founded 19601976)

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

25% 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

1 references

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons
905251%300.0 SEKidentity 52%, material 45%, size 62%, title 68%, edition 45%
1445451%18998.0 SEKidentity 56%, material 45%, size 62%, title 54%, edition 45%
899851%3811.0 SEKidentity 58%, material 45%, size 62%, title 49%, edition 45%
809451%3009.0 SEKidentity 58%, material 45%, size 62%, title 47%, edition 45%
1361449%400.0 SEKidentity 57%, material 45%, size 62%, title 37%, edition 45%
1072649%300.0 SEKidentity 47%, material 45%, size 62%, title 64%, edition 45%
1363949%550.0 SEKidentity 47%, material 45%, size 62%, title 59%, edition 45%
617349%1100.0 SEKidentity 49%, material 45%, size 62%, title 54%, edition 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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