Historical information
Memo of Michael Venn of PTC to a David Haydock about the size of tramway systems around the world. Lists city, route km, lines, trams and source. Melbourne at the time ranked No. 11. Notes the issues with route km and share routes and conflicting publications.
Significance
Yields information about a comparison of world tramway cities and that of Melbourne.
Physical description
Letter/Memo - 1 A4 sheet.
