This padlock had a high bid of $486.77 (Plus $4.90 Shipping).
ST. LOUIS 1904 WORLD'S FAIR PADLOCK
For auction is this padlock from the 1904 St. Louis Louisiana Purchase World's Fair. Made by Eagle Lock Company it comes with its original matched key. The lock is in very good used condition with honest wear as you can see in the photos. The springs are strong and the action is perfect, opening and closing. There is no binding and there are no bends, breaks or repairs. It measures 2 1/2" x 3 1/2". Key is 2 1/4" long. - eBay (31 Jan 2011)