Arrangement between the United States, Canada, Cuba, and Newfoundland relative to the assignment of high frequencies to radio stations on the North American Continent
[515] The Canadian Minister (Massey) to the Secretary of State
Washington, 27 December, 1928.
574.H1/2
[517] The Chairman of the Canadian Delegation (Johnston) to the Chairman of the American Delegation (Sykes)
Ottawa, 1 February, 1929.
574.H1/103: Telegram
[518] The American Minister in Canada (Phillips) to the Canadian Secretary of State for External Affairs (Mackenzie King)
Ottawa, February 26, 1929.
574.H1/103
[519] The Canadian Secretary of State for External Affairs (Mackenzie King) to the American Minister in Canada (Phillips)
Ottawa, 28 February, 1929.
574.T1/103
[520] The Canadian Secretary of State for External Affairs (Mackenzie King) to the American Minister in Canada (Phillips)
Ottawa, 6 March, 1929.
574.H1/77
[521] The Canadian Secretary of State for External Affairs (Mackenzie King) to the American Chargé in Canada (Mayer)
Ottawa, 15 March, 1929.
574.H1/84