Physical description

.1 - Book - 28 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Contactor Starters for Electric Motors" C49-1927, December 1927.



.2 - Book - 56 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Dimensions of insulated annealed copper conductors for electric power and light including voltage tests" C50-1928, June 1928.



.3 - Book - 36 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Vulcanised Fibre for Electrical Purposes" C51-1928, May 1928.



.4 - Book - 16 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Bus-bars and connections constructed of bare copper or aluminium" C52-1928, May 1928.



.5 - Book - 16 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Fixed Condensers for Radio Reception Purposes" - C53-1928, February 1928.



.6 - Book - 32 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "Graphic (Recording or chart recording) ammeters, voltmeters and wattmeters." C54-1928 March 1928.



.7 - Book - 20 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "5-Amp two pin wall plugs and sockets for domestic purposes (without earthing connection)" C55-1928, August 1928,



.8 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "Electric Cable Soldering Sockets" C56-1929, March 1929.



.9 - Book - 8 pages + brown covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Graphical Symbols and Schedule of Outlets for the Electrical Equipment of Buildings" C64 and 65-1935, October 1935.



.10 - Book - 24 pages + brown covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Porcelain Insulators for overhead powerlines and outdoor switching Structures" C67-1939, August 1939.

Inscriptions & markings

On top right hand corner has the date stamp of the "The Electric Supply Co. of Victoria Ltd Ballarat" for items .1 to .8, SEC stamp on .10.