Physical description
Report or Programme for the Sunday 20th October 1991, PTC Open Day 23 A4 photocopied sheets + A3 folded drawing stapled in the top left hand corner titled "Electrical Engineering in the PTC 1906 - 1991".
Describes the history of electric traction systems and engineering in Victoria for both rail and tram operations, overhead wiring systems, lighting and power supplies, with photos of Newport Power Station, Jolimont, Camberwell, Preston tramway substations. The last sheet has a drawing, poor quality of the 1500V DC railway traction system.
