"Potomack is relieved this came to light in a timely manner as we do not want to sell any item without clear title."

It turns out that a work bought for $7 at a flea market and now believed to be an authentic Renoir may have been stolen from the Baltimore Museum of Art.  Patricia Cohen has the details in the NYT.  Derek Fincham says "the case reveals the importance of reporting a theft, even decades into the future."  Nicholas O'Donnell says sorting it all out "looks to be a complicated question of history, records, legitimacy of sale, and a host of art law issues."