Records of Tasmanian branches of the Amalgamated Society of Engineers, the Amalgamated Engineering Union, the Boilermakers' and Blacksmiths' Society of Australia, and the Sheet Metal Working Agricultural Implement and Stovemaking Industrial Union of Australia including minute books, registration books and membership records, financial records and correspondence. Includes records of the Norfolk, Rosebery, Queenstown, Mersey, Launceston, Tamar, Hobart, and Burnie branches of the Amalgamated Engineering Union; Hobart No.1 Zone, Launceston No.1 Zone and Tasmanian branches of the Sheet Metal Workers' Union; Tasmanian Branch, Burnie , Queenstown, Devonport and Hobart Sub Branches of the Boilermakers' and Blacksmiths' Society.