General Motors TDH-4519 (CCL #621-626, 627:2, 628, 629:2)
Canada Coach Lines bought nine TDH-4519s (Transit bus, Diesel engine, Hydraulic transmission, 45 passenger, model #19) from the HSR in the mid 1970s. Built in 1964, these buses kept their HSR numbers 621-629.
Some of the dates for these photos are unknown, and the locations are often just a guess. If you know either date or location, email me!
CCL 626 in the late 1970s, place unknown. How can you tell? If you look carefully, the logo next to the front wheel is that of the CCL, not the HSR (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)