Recognizing the need for a truly national broadcasting system to provide adequate radio services across the country and promote Canadian production and content on the air, Canada’s legislators established the publicly-owned Canadian Radio Broadcasting Commission in 1932. It was replaces in 1936 by the Canadian Broadcasting Corporation (CBC).
Since 1974, the CBC has used the graphic symbol shown below (and featured as part of the stamp design) as its corporate identification symbol. It is based on the letter “C”, for Canada, which “explodes” in every direction. The current CBC corporate symbol and image have replaced all earlier designs.
The cachet design features the first identifying symbol of the CBC, developed in 1940, which was used nationally to symbolize the unifying influence provided by the CBC’s national radio programming throughout Canada.