Historical information
Provides a detail description of the Z class tram for Melbourne, its components and who made them. Includes information on the role taken by Comeng Victoria, Comeng NSW, MMTB, ASEA. Gives a detail description of the body, traction equipment, auxiliary equipment, conductor controls, ventilation, destination equipment, safety features and a detailed data sheet including performance.
Significance
Yields information about the manufacture of the Z class trams and the specifications.
Physical description
Document - 13 foolscap pages, titled New "Z class" trams for Melbourne giving engineering details of the then new Z class trams for Melbourne.