March 6, 1953. British South Africa Police, Security Branch Memoranda on Native Affairs.
Memorandum Number 75.
“VICTORIA FALLS
Three letters were found in the Victoria Falls area recently. One envelope bearing Northern Rhodesia postal stamps was addressed to the MAOTSE TUNG Leader of the Communist Government c/o Victoria Falls Airways, Victoria Falls. The writing is African style. No letter was enclosed. No great significance is attached to the matter.â€