Here is a neat example of a Clarke combination padlock. It is interesting to see that the lock has been used so much that you can see wear around the correct buttons to press. No matter, the new owner can always change the combination by opening the back and moving the pins around.
This padlock had a high bid of $930 (Plus $6.95 Shipping).Up for auction is a Vintage Clarke Combination Lock Co. Baltimore, MD. It is dated PAT'D FEB. 4 1873 JUNE 15 1875 REISSUED FEB. 29 1876. Combination is included with the lock and does work. Measures 2 1/2" x 4 1/4". - eBay (4 April 2013)