[DND 709]
DND, External Affairs, USAF, teletype lines
Telegram from Canairhed to External Affairs/D Sigs /USAF, pertaining to DND Circuit 709, a 60 wpm teletype circuit to Washington, which USAF wants converted to 100 wpm operations.
Hydra Communications - Policy, RG24, 1250-36 Vol. 1, Library and Archives Canada (LAC)
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