Here is a rare and highly collectible Antique Victorian Bramah Key, Specialty Slotted Barrel. Specifically made for Unpickable Bramah Lock.

History of Bramah Locks and Keys
The Bramah lock used a cylindrical key and keyhole. The end of the key has a number of slots of different depths which, when inserted into the lock and pressed against spring tension, would depress a number of wafers to a specified depth and enable the key to turn and open the lock.

Please view pictures closely for size and condition. You will receive the exact key pictured