found:Schwarzkopf, Tom. Tire and wires, 2019:p. 9 ("[...] post-WWII, when many Canadian systems were converting streetcar systems to the electric bus, the most common word used for it was "trolley coach". Trade journals used this term extensively as did manufacturers. In the latter years, the remaining systems' marketing people started using "trolley bus" or alternated it with "trolley coach". But, for internal use (garage staff, rolling stock engineers), these vehicles were usually referred to as "trolley coaches". Post-war ads placed by Canadian Car & Foundry, maker of the Canadian Car-Brill referred to the vehicles as "trackless trolley coaches". In some US cities, such as Boston and Philadelphia, the term more commonly used was "trackless trolley" or simply, "trackless". However, all the US manufacturers used the term "trolley coach". In Vancouver, the public and transit staff most often used the simple short form, "trolley" which was common in other places like Hamilton and Toronto, but this can be confused with "trolley car", a.k.a. "streetcar" (or "tram" overseas).")