Acquisition position
Current all in cost
375.0 SEK
Current bid or estimate300.0 SEK
Modelled discount12.8%
Liquidity score68%
Kalevala Koru · Sculpture · Björnssons Auktionskammare
Acquisition position
Potential market value
Evidence strength
Market anomaly
Risk profile
Investigation rationale
Decision guardrails
Visual laboratory
Object record
Brosch, 4,8x4,8cm. Halssmycke, längd 9 och 58cm.
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 44% · Marks 25% · Material 40%
26% combined confidenceVisual 0% · Name 39% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 38% · Marks 25% · Material 40%
25% combined confidenceVisual 0% · Name 33% · Marks 25% · Material 40%
24% combined confidenceClosed deal feedback
Enter the verified hammer price after the auction closes. Only verified outcomes become calibration data.
Learning guardrail
Global research evidence
Tom of Finland Finnish, 1920-1991
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoTom of Finland Finnish, 1920-1991
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoEija-Liisa Ahtila Finnish, born 1959
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAkseli Gallen-Kallela (Finnish, 1865–1931)
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAxeli Gallen-Kallela Finnish, 1865-1931
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoJoost Grootens, Designer Published by 010 Publishers Bernard Colenbrander and Rita Brons, Authors
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoCentral Finland
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoSalla Tykkä Finnish, born 1973
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoAxeli Gallen-Kallela Finnish, 1865-1931
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Maija Isola (Finnish, 1927–2001) Produced by Marimekko Oy (Founded 1951) Finland, Helsinki
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoMaija Grotell (American, born Finland, 1899–19730 Bloomfield Hills, Michigan
0% similarityCheck object rights; API metadata is openArt Institute of ChicagoDesigned by Maija Isola (Finnish, 1927–2001) Produced by Marimekko Oy, (Finnish, founded 1951) Finland, Helsinki
0% similarityCheck object rights; API metadata is openComparable logic
| Comparable ID | Match | Price | Reasons |
|---|---|---|---|
| 7931 | 69% | 400.0 SEK | identity 100%, material 45%, size 62%, title 71%, foundry or marks 45% |
| 7294 | 49% | 500.0 SEK | identity 50%, material 45%, size 62%, title 43%, foundry or marks 45% |
| 1480 | 47% | 300.0 SEK | identity 45%, material 45%, size 62%, title 48%, foundry or marks 45% |
| 3287 | 47% | 350.0 SEK | identity 45%, material 45%, size 62%, title 48%, foundry or marks 45% |
| 6605 | 47% | 200.0 SEK | identity 45%, material 45%, size 62%, title 47%, foundry or marks 45% |
| 12386 | 47% | 1210.0 SEK | identity 45%, material 45%, size 62%, title 46%, foundry or marks 45% |
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.