It would seem pretty hard to believe today but apparently during the sixties the popularity of decals was such that a particular decal producing company "Decalcomania" was so active that they actually had branch offices in multiple Canadian cities. What these companies produced in the way of decals that allowed them to grow such an expansive business was primarily directed at commercial advertising but of interest to CFL collectors is the attractive and varied decals that they produced for many of the league's teams.
Decals are most commonly found for the B.C. Lions and the company used to advertise their Lion decals in the game programs, but other decals are known for the Stampeders, Alouettes, Rough Riders and Argonauts and it would seem likely that they might have been produced for all of the teams.
Note that the decal reverses have the local branch offices of the company (or possibly franchisees) listed with the local address. In some cases the company was used to produce decals that promoted another local companies business and their relationship with the local football club, such as with the Ottawa Natural Gas suppliers shown below.
In some cases another companies name appears on the decals along with Decalcomania, and in other cases very similar looking items have a different company name that might have been successor firms to Decalcomania in a particular city. These decals are pretty popular as far as non-mainstream collectibles go and some can fetch pretty high prices on ebay as they were meant to be used so not too many survived to the present day.