#10, later renumbered 600, was a unique bus in the ETS bus fleet. It had a Fuso body on a Mitsubishi chassis. This particular bus was a demonstrator that ETS purchased. It was given a unique version of the ETS paint scheme and fleet number 10. The bus was then renumbered to 600 in 1968 as the #10 conflicted with the T6H-4521's being delivered from GMDD. This bus was powered by a Mitsubishi 8DB20A diesel engine. The bus was retired in June 1971. At that point it was leased to someone, who on the first trip with the bus had a engine coolant leak develop that wasn't worth fixing. The bus was probably scrapped after that. The only other transit system to purchase the MAR750L new was Winnipeg Transit. One of the the Winnipeg Transit units ended up with Airdrie Transit.

Thumbnail	Bus #	Date	Description
	600	November 18, 1968	ETS #600 is operating on a route S1 Ritchie in south Edmonton.