It's the piano used to play the signature song from "Casablanca".<br/> <br />And one bidder decided to play 'As Time Goes By' to the tune of $3.4 million at a sale at Bonhams auction house in New York on Monday, November 24.<br/> <br />The upright piano was featured in the 1942 hit starring Humphrey Bogart and Ingrid Bergman.<br/> <br />It's one of two models used by singer Dooley Wilson, and the instrument also doubled as a hiding place for illegal transit papers by Bogart's character, Rick.<br/> <br />Another piece of Hollywood history which fetched a high price was the Cowardly Lion costume worn in "The Wizard of Oz".<br/> <br />The suit, including a sculpted likeness of actor Bert Lahr's face, went under the hammer for nearly $3.1 million.<br/> <br />Buyers at the Bonhams and Turner Classic Movies auction snapped up screenplays, posters and dresses as well.
