Minute books, membership records, correspondence, financial records, industrial papers, reports and rule books. Includes Coastal District and Fremantle Branch records of the Amalgamated Engineering Union and its predecessor Amalgamated Society of Engineers; Kalgoorlie Branch records of Western Australian predecessors West Australian Coach, Car and Rolling Stock Builders' Industrial Union of Workers and the WA Vehicle Builders' Union; and rule books of the Western Australian Plumbers and Sheet Metal Workers Industrial Union of Workers.

Minutes, minutes of apprentices committee, correspondence, industrial and arbitration material, rule books, historical documents, reports, membership "starting books", photographs and certificates. Includes records of the Amalgamated Engineering Union Sydney District and Cumberland Branch, and the NSW Branch of the Federated Moulders (Metals) Union of Australia.