[net.crypt] Request: source for secret decoder rings

rlp@cbscd5.UUCP (R L Platt) (10/17/83)

I am teaching a short course on math (actually
'Fun with Math') to a group of junior high students.
One of the things I plan to teach is cryptography.

Does anyone know of a supplier for 'Secret' Decoder 
Rings - like the type that companies used to put in
cereal boxes.  I would like to buy a few for the kids
to help illustrate coding/decoding the Caesar cypher.

Please respond to:

			R. L. Platt
			cbosgd!cbscd5!rlp