Paul McCartney's handwritten letter to a mystery drummer offering an audition for The Beatles has sold for 35,000 pounds, which is the equivalent of $55,400. As previously reported, the letter that was found in a book at a yard sale was expected to bring in bids at an excess of $11,000.

One has to wonder if the Christie's auction house professionals were surprised when on Nov. 15, a European buyer made the mega offer that turned into the winning bid over the telephone. Granted, this is a pretty special piece of memorabilia, given it's a one-of-a-kind nature. The letter, written on Aug. 12, 1960, reveals McCartney's desire to find a drummer before their two-month stint in Hamburg, Germany.

Still, that's a huge amount of cash even for a rare piece of rock memorabilia, but that seems to be the new trend. Beatles collectibles are fetching higher prices than usual at present, so clearly there is no economic recession in collecting classic rock items. That said, next time you go to a yard sale, look through that box of dusty old books. You never know what sort of valuable bookmark you might come across.