[image of digits]

Collections in Cryptology - Toys & Related Devices
Key mechanisms in computation...

...

Toys & Souvineers


Reproduction of the Confederate Code Disk issued by the National Security Agency's Cryptologic Museum.


Bear Creek Toys.


Jefferson Wheels, part of a school curriculum on codes.
Interestingly, the individual wheels can be placed in different orders.


Lawrence "Dick Tracy" "Code-Maker" (top) and "Secret Code-Maker" (bottom).

...
Locks

"Word Lock" marketed by Staples.