Royal Canadian Signal Corps maintains and operates a Canada-wide radio and teletype system in Calder.
Edmonton Bulletin
Communication
Military
Radio broadcasting
Uniforms
24-Apr-48
1 photograph : negative ; 10 x 13 cm
https://cityarchives.gov.edmonton.ab.ca/royal-canadian-signal-corps-maintains-and-operates-a-canada-wide-radio-and-teletype-system-in-calder
EA-600-1027a