Pretty cool find. One wonders how much is thrown away that does not get rescued. The case presents some interesting legal issues. I imagine the heirs of the deceased collector would perhaps have a claim. I'm not sure what the relevant limitations period in Austria would be, but it may be that the limitations has expired and the finder would get to retain title.
Vienna - An old cross recovered by an Austrian woman from a garbage container turned out to be an 800-year-old French masterpiece stolen from a Polish collection by the Nazi regime, Austrian police said on Thursday. In 2004, the woman from Zell am See in the province Salzburg got permission from her neighbours to look through a garbage container of things they had thrown out. Among other things, she took an old, gold-coloured cross. As nobody else liked it, the woman kept the gold-plate and enamel cross under her couch until showing it to art experts earlier this year. According to experts from Vienna's Fine Arts Museum, the piece of garbage turned out to be a passion cross from a manufacturer in Limoges in France made around 1200. Similar pieces fetched up to 400,000 euros (537,000 dollars) at international auctions. Police traced the origin of the cross, showing the piece had been stolen by the Nazi regime from the Polish art collection of Izabella Elzbieta of Czartoryski Dzialinska in 1941. Pieces from the collection were moved from Warsaw to Austria, where the trail ended in 1945. The cross's fate still remains unclear. The London-based Commission for Looted Art, informed by the Polish authorities, is representing the heirs. The local court in Zell am See decided that for the time being the garbage-treasure was to be kept at the local heritage museum at Leogang, where it could be properly stored.