#RW013 - Classic Caesar Cipher Medallion Decoder Ring


SKU: RW013 Category:

The top ring rotates around the bottom one, setting your secret code number in the window.
•Inspired by the Classic Decoder Rings of the Golden Era of Radio
•Solid Die-Struck Metal
•Weighs Just Over 1 Ounce, 1-1/2″ (inches) in Diameter
•Use in Building Treasure Hunts
•Geocaching: Set the ring to 13 for a ROT13 hint decoder
•Instructions on Packaging
Detailed Instructions:

To use this ring, think of the inner disk as the true message and the outer disk as the encoded message.

The numbers in the square window of the inner disk represent the code shift of your message. If you set 1 in the window, there is a shift of 1, and “A”=”B”, “B”=”C” and so on.

To encode a message, first choose your secret code shift number. Let’s use 17 for an example by turning the inner disk until 17 is seen in the window. To encode “HELLO” you look across from “H” on the inner disk and see “Y” on the outer disk. Across from “E” is “V”, “L”=”C”, “L”=”C” again, and “O”=”F”. So with a code shift of 17, HELLO is encoded to YVCCF.

The recipient of a message must know the code shift number to decode a message. Let’s decode XPDDLRP. We have no idea what it says, but if we know the code number is 11, we can set that in the window. We decipher code from the outer ring to the inner. Across from “X” is “M”, across from “P” is “E”, “D”=”S”, “D”=”S” again, “L”=”A”, “R”=”G”, and “P”=”E”. So XPDDLRP decoded with a shift of 11 is MESSAGE.

Additional information

Weight 2 lbs
Dimensions 12 x 6 x 6 in


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Shipping charges are added for this item, the web site well give you a price quote and it well be added to the final price. In a effort to keep the price down, I may occasionally take the item out of the factory box and or combine multiple items in a smaller box.

International Shipping

Any address outside the lower 48 US is considered International and we do ship worldwide to most countries, in a effort to control the price, we may repack the item out of the factory box into a smaller box or multiple items into one box, if you do not want this, contact me and let me know, but your shipping might be higher.