[Dawgsquat]

The commercial register is the world's biggest computerised image database of stolen and missing art, antiquities and valuables.

Do you suppose that register is on the web? I'll do a search. Would be interesting to look at.

[Orual]

If you go to THIS SITE you can get a list of the databases for numerous countries and if you scroll through, you can access private stolen art and a list of stolen art by country and continent.