Physical description

.1 - Book - 8 pages + grey covers, side stapled, issued by the Australian Standards Association, "Electrical Voltages and electrical frequencies for new installations ", C1 (a&b) - 1926, December 1926.



.2 - Book - 36 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Overhead Line wire material for telegraph and telephone purposes", C3-11-1925, November 1925.



.3 - Book - 20 pages + brown covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Telephone cable, paper insulated lead covered", C12 - 1928, January 1928.



.4 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Marking for Switchboard bus-bars and connections" C13 - 1925, December 1925 - with a pasted green label noting that the "tentative standard is now endorsed as Australian Standard without amendment" - dated Oct. 1930.



.5 - Book - 32 pages + grey covers, side stapled, issued by the Australian Standards Association, Tentative Australian Standard "Dimensions and Resistances of Bare Annealed Copper Wire for Electrical Machinery and Apparatus", C 18-1926, October 1926.



.6 - Book - 12 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "Slate Slabs for Electrical Purposes", C19 - 1926, July 1926.



.7 - Book - 16 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Moulded Flat Top Insulation Bushes" C20-1926, October 1926.



.8 - Book - 16 pages + brown covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Insulation dimensions and resistance of enamelled plain copper wire for instruments and apparatus" C21-1928, January 1928.



.9 Book - 20 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Watertight Glands for electric cables" C22-1926, September 1926.



.10 - Book - 20 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Air-break knife switches and laminated brush switches for voltages not exceeding 660Volts" - C23 - 1926, August 1926"

Inscriptions & markings

On top right hand corner has the date stamp of the "The Electric Supply Co. of Victoria Ltd Ballarat"