The cool part of this lock is the key and keyway. Definately cool, but cool comes with an expensive price.
antique French secret padlock made about 1800's- wrought ironwith clover key 2.1/4" inches(5.7cm)
size of padlock: 1.1/2."inches(4cm) by :2.3/4" (7cm)to open padlock:1 - Pull the back plate of the lock to release the aperture plate (cache-entry of padlock) : picture 32 - Position the plate to left -on the symbol (If the position is not correct, the key turns but does not actuate the mechanism): picture 43 - adjust the clover with the key, insert the key and turn -the lock is open, to close you need to keep the position (2)IN VERY GOOD CONDITION - eBay
This padlock had a buy-it-now price of $1,700 (Plus free Shipping). It was currently available at the time of writing.-----