Cards, Deck, 'Signalcards', The Sunset Press

Genuine WWII US 'Signalcards', regulating the use of numeral flags and pennants when conveying information at a distance by means of a particular visual code known as semaphore. Every number and letter of the Latin alphabet corresponds to a specific position of the hand-held semaphore flags. 

Manufactured by The Sunset Press, San Diego, California. Delivered in their original cardboard box.