Provenance Research & Missing Art Tracking

Independent research into missing and stolen artworks on the international art market.

As a private individual, I compare artworks offered in public with descriptions of missing or stolen works. This website is not an authority, a loss register, or a commercial offer. It does not provide legal advice, and it does not establish that two works are the same.

I send notes to museums, collectors, and other institutions by email. A link in such an email leads to the third-party listing. That provider is responsible for the listing’s content.

The site is operated by Leo Grützner. Contact: art [at] gee.berlin