
Cleaning up at Grandma's house or rummaging at a house sale? Shake old books to be sure nothing is hidden between the pages. A rare 1911 Canadian $500 bill featuring a picture of Queen Mary, wife of King George V, one of three known to exist, was rescued from a pile of old books headed for a shredder. It set a record when it sold at a Heritage Auction Galleries auction in September for $322,000.