Union Army Cipher Disk | Accurate Civil War Replica spy game -It is a doubly-even pandiagonal

-It is a doubly-even pandiagonal normal magic square using integers from 1 to 64

Handcrafted Beauty: Frame top is shaped like mountains

the mosquito

it’s a unique and thoughtful gift for puzzle lovers

Specifications

Union Army Cipher Disk | Accurate Civil War Replica spy game -It is a doubly-even pandiagonalA precision laser engraved wood version of this famous cipher which was used for the encryption of messages of the Union Army during the American Civil War (1861 1865). It was a system primarily used for flag signals where there was a line of sight or for encrypted morse code messages. Note each disk has a unique serial number as was used in the original wheels. Instructions for use are included. The letters A. J. M on the disk are for Albert J Myer,