There can't be that many of these padlocks out there, but it sure seems like everyone who owns one decided to sell them at the same time.
This padlock had a high bid of $394.95 (Plus $7 Shipping).Up for auction this evening is an estate fresh Rare antique 1904 World's Fair - St. Louis pad lock. This is the last of 3 of these locks I am listing on ebay, all 3 came from a 50 year lifelong collection, the other 2 have already been listed on ebay over the last few months, I promise you this is the last from a fine collection. It measures 3.5 inches tall, 2.5 inches across. it is locked and i do not have the key, Condition is as you see it, Enlarge the photos and zoom in for a closer look and judge for yourself the condition. Guaranteed 100% old and authentic!!! NO RESERVE!!. Please ask all questions before you bid, all sales final. Because all items are found from estates, they are sold As-Is. - eBay (7 Mar 2012)