28/09/2026
A newly launched provenance research tool offers a specialized reverse image search for artworks, allowing researchers to compare photographs of artworks against a database of restitution claims documented by the Commission for the Recovery of Art (CRA), active from 1944-1949.
When a user uploads a picture of an artwork to "Spolia"—the new tool, developed by our partners at the Mission for Research and Restitution of Spoliated Cultural Property (M2RS) in France's Ministry of Culture (Ministère de la Culture)—a reverse image search will scan the CRA photograph collection for instances in which the same work may appear. A match can provide an important lead for provenance research, suggesting the work may be connected with a postwar restitution claim.
An "Explore" function also allows users to describe an artwork using words and retrieve photographs from the database that match the description.
Spolia is currently in beta and available in French, English, and German.
Try it out: https://spolia-m2rs.fr/en/