The C-class was a group of 11 trams built by Duncan & Fraser, Adelaide for the Prahran & Malvern Tramways Trust (P&MTT) in 1913, numbered 25 to 35. All retained their fleet numbers when passed to the Melbourne & Metropolitan Tramways Board (M&MTB) on 2 February 1920, after it took over the P&MTT. They were designated C-class sometime after October 1921, and by late 1923, all M&MTB drop-end-and-centre Maximum Traction trams (former D-class, E-class, N-class, and P-class) were grouped together as C-class trams. The 22E Maximum Traction trucks were of JG Brill design, although manufactured by Brush in England.