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FOTO. DEN TJECKISKE FOTOGRAFEN RUDOLF JANDAS PRALES V. BESKYDACH I FÖRSTA UPPLAGAN 1943 - SUGGESTIV SKOG, SKOG OCH ÅTER SKOG.

Unknown maker or artist · Photography · Crafoord Auktioner Lund

Open auction lot

0

low priority

Acquisition position

Current all in cost

375.0 SEK

Current bid or estimate300.0 SEK

Modelled discount0.0%

Liquidity score70%

Potential market value

Specialist value interval

Not calculated

Value confidence0%

Comparable sales0

Evidence strength

15%

Identity confidence33%

Visual match0%

External references12

Market anomaly

0%

Information gap100%

Potential undervaluation0.0%

Risk profile

13%

Authenticity risk13%

Condition risk18%

Investigation rationale

Why this may be worth considering

No positive signals have been confirmed yet.

Decision guardrails

What must be verified

condition wording: nagg
category trap check: later print sold as vintage
missing photographer
missing process
missing print_date
missing edition
missing dimensions
missing provenance

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

ConditionBand och inlaga i god kondition. Skyddsomslaget med lite kantnagg och några lätta fläckar på baksidan. Bruks- och åldersrelaterat slitage.

ProvenanceMissing

Modelphotography_specialist 2.0.0

Foto, Janda, Rudolf, tjeckisk fotograf, (1907-2000). Prales v Beskydách. Ceske Graficke Unie, 1943. Första upplagan. Stor 4:o i ett grönt klotband textat i gult. Med ett fotoillustrerat och textat skyddsomslag. Genomillustrerad med svart-vita fotografier av skog, skog och skog. 212 sid. , (VII). texten på tjeckiska. Mäter ca. 32 cm. x 22 cm.

Identity resolution

Artist and maker hypotheses

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

11 candidates

1 independent sources

Georgia O'Keeffe (American, 1887–1986)

Visual 0% · Name 57% · Marks 25% · Material 40%

31% combined confidence

1 independent sources

Marsden Hartley American, 1877-1943

Visual 0% · Name 57% · Marks 25% · Material 40%

31% combined confidence

1 independent sources

Onchi Koshiro Japanese, 1891-1955 Printer: Sekino Jun'ichiro Japanese, 1914-88

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

28% combined confidence

1 independent sources

Arshile Gorky American, born Ottoman Empire (Present Day Turkey), c. 1904–1948

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

28% combined confidence

1 independent sources

Photographer unknown

Visual 0% · Name 33% · Marks 25% · Material 40%

27% combined confidence

1 independent sources

Edward Weston American, 1886–1958

Visual 0% · Name 26% · Marks 25% · Material 40%

26% combined confidence

1 independent sources

Charles Sheeler (American, 1883–1965)

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

26% combined confidence

1 independent sources

Milton Avery (American, 1885–1965)

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

26% combined confidence

1 independent sources

Ivan Albright (American, 1897–1983)

Visual 0% · Name 24% · Marks 25% · Material 40%

25% combined confidence

1 independent sources

Archibald John Motley Jr. (American, 1891–1981)

Visual 0% · Name 24% · Marks 25% · Material 40%

25% combined confidence

1 independent sources

Harry Callahan American, 1912–1999

Visual 0% · Name 24% · 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

Nightlife

Archibald John Motley Jr. (American, 1891–1981)

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

Picture of Dorian Gray

Ivan Albright (American, 1897–1983)

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

Portrait of the Poet Hagiwara Sakutaro (1886–1942), Author of “Ice Island,” 1943

Onchi Koshiro Japanese, 1891-1955 Printer: Sekino Jun'ichiro Japanese, 1914-88

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

The Artist Looks at Nature

Charles Sheeler (American, 1883–1965)

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

The Black Place

Georgia O'Keeffe (American, 1887–1986)

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

Bowl of Fruit

Marsden Hartley American, 1877-1943

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

The White Place in Sun

Georgia O'Keeffe (American, 1887–1986)

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

Carnival

Arshile Gorky American, born Ottoman Empire (Present Day Turkey), c. 1904–1948

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

Untitled (Aug. 15, 1943, stamped Never-Fade Photo Prints Oct 4-1943)

Photographer unknown

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

Portrait of Brett Weston

Edward Weston American, 1886–1958

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

Detroit

Harry Callahan American, 1912–1999

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

Conversation in Studio

Milton Avery (American, 1885–1965)

0% similarityCheck object rights; API metadata is open

Comparable logic

Specialist model explanation

No sufficiently relevant sold comparables in the same currency or with normalized prices.
explicit category supplied

Comparable ID	Match	Price	Reasons

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.