Provides information on the work of the Australian Commonwealth Engineering Standards Association that was founded in 1922 and later became the Standards Australia who celebrated 100 years in Oct. 2022. Work at the time was on railway, tramway, electrical and other items such as cement. Note the entry for Trolley Wheel Grooves.Demonstrates the work of the Australian standards body in the formation of tramway and electrical standards.Set of two pamhlets or documents published by the Australian Commonwealth Engineering Standards Association 1 - fold out sheet - 6 sections, titled ACESA - Chart showing development committees - Sept. 1924 2 - four page - ACESA - Bulletin No. 1 31-10-1924acesa, standards, tramways, electrical engineering, rails, power engineering, tramway rails