This padlock had a high bid of $665 (Plus $13.65 Shipping).
This well made restraining device is designed with a single restraining cuff and is known also as a "Come Along". This particular one is of European origin, is spring loaded and remains in very nice working condition. Overall measuring 5 across by 3 3/8 inches in height. There is no reserve. - eBay (18 April 09)