Acquisition position
Carl-Otto Schander · Paintings · Halmstads Auktionskammare
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Båtar, signerad 41x60 cm, totalmått 53x73cm.
Identity resolution
Ranked from independent evidence. Confirmation or rejection becomes controlled training data.
Visual 0% · Name 86% · Marks 25% · Material 40%
33% combined confidenceVisual 0% · Name 86% · Marks 25% · Material 40%
33% combined confidenceVisual 0% · Name 86% · Marks 25% · Material 40%
33% combined confidenceVisual 0% · Name 45% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 40% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 39% · Marks 25% · Material 40%
25% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Designed by Carl Otto Czeschka (Austrian, 1878–1960) Produced by the Wiener Werkstätte (Vienna, active 1903–1932) Vienna, Austria
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Carl Otto Czeschka (Austrian, 1878–1960) Produced by the Wiener Werkstätte (Vienna, active 1903–1932) Vienna, Austria
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCarl Blechen (German, 1798–1840)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCarl Andre American, 1935-2024
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoArthur B. Carles American, 1882–1952
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoOtto Dix German, 1891-1969
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoOtto Dix (German, 1891-1969) published by Verlag Karl Nierendorf/Galerie Nierendorf (German, founded 1920)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoErnst Ludwig Kirchner German, 1880-1938
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoOtto Dix German, 1891-1969
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCarle Vernet (French, 1758-1836) printed by Comte Charles Philibert De Lasteyrie (French, 1759-1849)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoOtto Dix German, 1891-1969
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoOtto Dix German, 1891-1969
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 16553 | 64% | 1500.0 SEK | identity 78%, material 45%, size 62%, title 52% |
| 15485 | 57% | 1100.0 SEK | identity 65%, material 45%, size 62%, title 44% |
| 17144 | 55% | 300.0 SEK | identity 51%, material 45%, size 62%, title 72% |
| 16536 | 55% | 40923.0 SEK | identity 62%, material 45%, size 62%, title 37% |
| 15487 | 54% | 500.0 SEK | identity 59%, material 45%, size 62%, title 40% |
| 15087 | 53% | 350.0 SEK | identity 55%, material 45%, size 62%, title 47% |
| 15887 | 53% | 7000.0 SEK | identity 55%, material 45%, size 62%, title 45% |
| 14033 | 53% | 2700.0 SEK | identity 54%, material 45%, size 62%, title 46% |
Automatic signature module
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.
The module runs during normal analysis when a local image is available.
Marks laboratory
110 independent methods generate cleanup variants, stroke and symbol descriptors, library matches, trust controls and conflict warnings.
Signature forensics
This does not declare a signature genuine. It measures fit against a multi-source reference set, confusing signers and natural variation.
Run mark matching first, then compare the questioned signature against a sufficiently broad trusted reference set.