Historical information
Document - letters and comments and suggestions for a tender specification for the Austral Otis grinding machine from Chief Engineer MMTB to A G Wray Engineer for Tramways, NSW Govt Tramways. The grinder was used to remove corrugations from the rail head. Includes comments about the performance of a similar machine in Melbourne. Dated July 1929.
Significance
Yields information the performance of the Melbourne rail grinders - 1929
Physical description
Document or memo - 6 typed foolscap sheets and 3 quarto typed letters.