A recently discovered 500-year-old engraving may show Leonardo da Vinci playing a lira da braccio. If authenticated, the piece would mark only the third contemporary depiction of Leonardo to
Stolen masterpieces are priceless and worthless at the same time—they're too hot to sell, and have limited use as collateral. But one criminal tried to use them to sweeten his sentence.
Femme nue couchée, one of several Courbets owned by the Hungarian Jewish collector Baron Ferenc Hatvany, disappeared after World War II from a Budapest bank vault. The painting resurfaced 50 years…