Bibliographic Details
Main Creator:	Hayes, Richard J., 1902-1976
In collection:	Richard J. Hayes Papers, 1902-1976.
Format:	Manuscript
Language:	English
Subjects:	World War, 1939-1945 > Secret service > Germany World War, 1939-1945 > Secret service > Ireland World War, 1939-1945 > Cryptography Cryptographers > Ireland Ireland > Foreign relations > Germany Germany > Foreign relations > Ireland > 1939-1945
Notes:	Photostats about ciphers. Physical description: 1 item (2 pages). more
Arrangement:	Item