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KURIOSA, parti, 1900-tal.

Unknown maker or artist · Clocks and watches · Auktionshuset STO Bohuslän

Open auction lot
1
low priority

Acquisition position

Current all in cost

850.0 SEK
Current bid or estimate300.0 SEK
Modelled discount0.0%
Liquidity score94%

Potential market value

Specialist value interval

Not calculated
Value confidence0%
Comparable sales0

Evidence strength

12%
Identity confidence25%
Visual match0%
External references2

Market anomaly

0%
Information gap86%
Potential undervaluation0.0%

Risk profile

8%
Authenticity risk8%
Condition risk6%

Investigation rationale

Why this may be worth considering

  • Potential valuable component inside a group
  • very short catalogue title may reduce bidder discovery

Decision guardrails

What must be verified

  • missing maker
  • missing reference
  • missing serial
  • missing movement
  • missing case_material
  • missing service_history

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
ConditionEj genomgånget.
ProvenanceMissing
Modelclocks_watches_specialist 2.0.0

Parti om bl.a myntset, mynt, medaljer, pins, plaketter, bijouterier, plånböcker, armbandsur, med mera.

Identity resolution

Artist and maker hypotheses

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

2 candidates
1 independent sources

Leonardo da Vinci

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

25% combined confidence
1 independent sources

Jacques Louis David

Visual 0% · Name 36% · 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

2 references

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.

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