Classic Caesar Cipher Medallion Silver Decoder

Inspired by the classic decoder rings of the golden era of radio, this coin allows you to encode messages on the go. Functions like a classic cipher disc, the top ring rotates around the bottom one, setting your secret code number in the window.  Perfect for use in treasure hunts, and geocaching Made of solid die cast metal Weighs Just Over 1 Ounce, 1-1/2" (inches) in Diameter