Magazine - 24 pages - A4 full gloss paper - central stapled titled "ASEA Journal 1977 - Vol. 50 - No. 4", published by ASEA Pty Ltd. Has an article "New Trams for Melbourne" - written by Lars Friden, ASEA Transport division and Ross Coltman of ASEA Lilydale. Includes information on the tram itself, background, contractors, design, equipment, control equipment, internal and external photographs, under floor layout, bogies, electrical diagrams, panels, and layouts. See also Reg item 1603 for September 1976 issue about the 50th Z class delivery. 2nd copy added 10-1-2019trams, tramways, asea, sweden, mmtb, z class, electrical equipment, controllers