The Mauretania CipherCard
A variation of the Gronsfeld Cipher with Alpha-Binary Crypto-Enhancement. Designed to appeal to the most discerning tastes. Sub-pocket sized for easy transport to international destinations. Aesthetically suspicious. Instructions for basic usage included. Self-implied options for multiple levels of security. Top-Secret, okay?
Now available at no charge while supplies last. Send a self-addressed stamped envelope to:
The Mauritania Trading Co.
385 East Taylor Street
Office No. 230
San Jose, Calif. 95112
Your first cipher challenge. Use the key (card and set# combination) on the CipherCard you receive to decode the scrambled portion of this URL (case sensitive - so the answer is lower case too) and find The Secret Golden Treasure:
Watch this space for future CipherClues! Yes, coming soon! Right here! Patience...