Possibly looted antiquities: poor Alan Dershowitz

"Alan M. Dershowitz, the Harvard law professor, is in a similar bind. An antiquities collector, he is eager to sell an Egyptian sarcophagus he bought from Sotheby’s in the early 1990s. But he is stymied, he said, because auction houses are applying tighter policies to the items they accept for consignment.  “I can’t get proof of when it came out of Egypt,” Mr. Dershowitz said." (thanks James)