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PELLE WADSTRÖMER. akvarell, signerad, daterad 1995.

Pelle Wadströmer · Prints and works on paper · Karljohan Auktioner

Open auction lot

54

research

Acquisition position

Current all in cost

500.0 SEK

Current bid or estimate300.0 SEK

Modelled discount63.6%

Liquidity score78%

Potential market value

Specialist value interval

300 to 4614 SEK

Value confidence69%

Comparable sales30

Evidence strength

40%

Identity confidence36%

Visual match0%

External references12

Market anomaly

69%

Information gap60%

Potential undervaluation63.6%

Risk profile

8%

Authenticity risk8%

Condition risk6%

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

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

ArtistPelle Wadströmer

MakerMissing

MediumMissing

MaterialsMissing

Dimensions? × ? × ? cm

WeightMissing g

YearMissing

EditionMissing

MarksMissing

ConditionGlas med invändigt smuts.

ProvenanceMissing

Modelworks_on_paper_specialist 2.0.0

Mått med ram 50 x 40 cm Has resale rights.

Identity resolution

Artist and maker hypotheses

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

10 candidates

1 independent sources

Alberto Burri Italian, 1915–1995

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

33% combined confidence

1 independent sources

Karl Schrag American, born Germany, 1912-1995

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

33% combined confidence

1 independent sources

Bruce Conner American, 1933-2008

Visual 0% · Name 44% · Marks 25% · Material 40%

26% combined confidence

1 independent sources

Ray Yoshida American, 1930-2009

Visual 0% · Name 42% · Marks 25% · Material 40%

26% combined confidence

1 independent sources

Richard Hawkins American, born 1961

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

25% combined confidence

1 independent sources

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

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

25% combined confidence

1 independent sources

Carrie Mae Weems American, born 1953

Visual 0% · Name 39% · Marks 25% · Material 40%

25% combined confidence

1 independent sources

Doug Aitken American, born 1968

Visual 0% · Name 39% · Marks 25% · Material 40%

25% combined confidence

1 independent sources

Christopher Wool American, born 1955

Visual 0% · Name 39% · Marks 25% · Material 40%

25% combined confidence

1 independent sources

David Hammons American, born 1943

Visual 0% · Name 37% · 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

12 references

Art Institute of Chicago

Untitled April 5, 1995

Bruce Conner American, 1933-2008

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

Inkblot Drawing, June 1, 1995

Bruce Conner American, 1933-2008

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

Maggie's Brain

Christopher Wool American, born 1955

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

Black and Tanned Your Whipped Wind of Change Howled Low Blowing Itself - Ha - Smack into the Middle of Duke Ellington's Orchestra Billie Heard It Too & Cried Strange Fruit Tears

Carrie Mae Weems American, born 1953

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

"Untitled" (Golden)

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

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

White (Bianco)

Alberto Burri Italian, 1915–1995

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

monsoon

Doug Aitken American, born 1968

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

Phat Free

David Hammons American, born 1943

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

Flicker and Gleam of Fire

Karl Schrag American, born Germany, 1912-1995

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

(Untitled) Taizo in City

Richard Hawkins American, born 1961

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

You Were What?

Ray Yoshida American, 1930-2009

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

Mold (Muffa)

Alberto Burri Italian, 1915–1995

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

30 category specific sold comparables selected
model uses prints and works on paper specific identity, material, size and documentary fields
value interval uses weighted 20th, 50th and 80th percentiles with a dispersion adjustment
explicit category supplied

Comparable ID	Match	Price	Reasons
19978	55%	400.0 SEK	identity 59%, material 45%, size 62%, title 77%, edition 45%
12673	51%	300.0 SEK	identity 53%, material 45%, size 62%, title 64%, edition 45%
640	50%	700.0 SEK	identity 52%, material 45%, size 62%, title 57%, edition 45%
6264	50%	2600.0 SEK	identity 45%, material 45%, size 62%, title 74%, edition 45%
9607	50%	1400.0 SEK	identity 50%, material 45%, size 62%, title 60%, edition 45%
6572	50%	300.0 SEK	identity 45%, material 45%, size 62%, title 72%, edition 45%
19870	49%	300.0 SEK	identity 45%, material 45%, size 62%, title 69%, edition 45%
13836	49%	700.0 SEK	identity 50%, material 45%, size 62%, title 57%, 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

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.