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HENRY WALTER KLEIN. Stol, teak, Danmark, 1960-tal.

Henry Walter Klein · Furniture and design · Gomér & Andersson Nyköping

Open auction lot
40
low priority

Acquisition position

Current all in cost

900.0 SEK
Current bid or estimate300.0 SEK
Modelled discount42.1%
Liquidity score86%

Potential market value

Specialist value interval

350 to 3037 SEK
Value confidence69%
Comparable sales30

Evidence strength

37%
Identity confidence29%
Visual match0%
External references2

Market anomaly

41%
Information gap67%
Potential undervaluation42.1%

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 manufacturer
  • missing model
  • missing materials
  • missing dimensions

Visual laboratory

Add and compare research imagery

Object record

Known facts and missing information

ArtistHenry Walter Klein
MakerMissing
MediumMissing
MaterialsMissing
Dimensions? × ? × ? cm
WeightMissing g
YearMissing
EditionMissing
MarksMissing
ConditionBruksslitage, repor och märken. Vit fläckar.
ProvenanceMissing
Modelfurniture_design_specialist 2.0.0

Sitthöjd ca 44 cm. Rygghöjd ca 74 cm.

Identity resolution

Artist and maker hypotheses

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

2 candidates
1 independent sources

Juan Bautista Martínez del Mazo

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

25% combined confidence
1 independent sources

Pablo Picasso

Visual 0% · Name 35% · 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

2 references

Comparable logic

Specialist model explanation

Comparable IDMatchPriceReasons
1687651%1500.0 SEKidentity 56%, material 45%, size 62%, title 45%, manufacturer labels 45%
1476051%2000.0 SEKidentity 55%, material 45%, size 62%, title 47%, manufacturer labels 45%
141251%950.0 SEKidentity 55%, material 45%, size 62%, title 47%, manufacturer labels 45%
247750%300.0 SEKidentity 45%, material 45%, size 62%, title 86%, manufacturer labels 45%
1263450%1000.0 SEKidentity 55%, material 45%, size 62%, title 39%, manufacturer labels 45%
222250%3000.0 SEKidentity 45%, material 45%, size 62%, title 84%, manufacturer labels 45%
1752849%2000.0 SEKidentity 45%, material 45%, size 62%, title 71%, manufacturer labels 45%
1056449%3037.0 SEKidentity 45%, material 45%, size 62%, title 67%, manufacturer labels 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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