Minute books of the Port Pirie, Port Adelaide, Adelaide and Adelaide No. 2 Branches and a Broken Hill Branch contribution book (1889-1892). Includes records of predecessors Boilermakers' Society of Australia, United Society of Boilermakers and Iron Shipbuilders of South Australia, Boilermakers' and Blacksmiths' Society of Australia and the Blacksmiths' Society of Australia.

Minutes, minutes of apprentices committee, correspondence, industrial and arbitration material, rule books, historical documents, reports, membership "starting books", photographs and certificates.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.

Arbitration records, register of members out of work (1881-1887), mortality fund register, administration files re Federal Council circulars, rules and agreements, minutes, reports, correspondence, financial records, press cuttings, printed material, photograph and ephemera. Includes records of branches and districts of predecessors Amalgamated Society of Engineers, the Amalgamated Engineering Union, the Boilermakers and Blacksmiths Society of Australia, and iron ship builders, shipwrights and sheetmetal unions.