Signalling equipment in use 1922

Personnel of the Royal Canadian Corps of Signals with signalling equipment, Rockliffe or Camp Borden, Ontario, circa 1922.

The equipment is a complete WT Set Trench CW Mk III. The WT Set Trench CW Receiver Mk III is seen of the left (with two valves showing) and the WT Set Trench CW Transmitter Mk III is on the right (with the soldier touching it).

Credit National Archives of Canada: PA 92373 (ACC 1969-44, Box 3240, No. 421).