3Inspired by actual WWII signal training cards, a double deck of playing cards and companion booklet highlight this handsome gift set. The 48-page illustrated booklet recounts the fascinating historical background of the signal flag, semaphore, phonetic alphabet, and Morse code systems featured in the decks. Packaged in a durable and attractive case, the set includes a recreated Morse code flasher device, a signal training indicator wheel, a full-color poster, and other items of historical interest.