The Amalgamated Instrument Makers' Society was a

trade union A trade union (British English) or labor union (American English), often simply referred to as a union, is an organization of workers whose purpose is to maintain or improve the conditions of their employment, such as attaining better wages ...

representing workers involved in manufacturing scientific instruments in the United Kingdom. The union was founded in 1887 as the Scientific Instrument Makers' Trade Society. In 1891, it was a founder member of the

Federation of Engineering and Shipbuilding Trades The Confederation of Shipbuilding and Engineering Unions (CSEU), often known as the Confed is a trade union confederation in the United Kingdom. History The confederation was founded in December 1890 as the Federation of Engineering and Shipbuil ...

.{{cite book , last1=Marsh , first1=Arthur , last2=Ryan , first2=Victoria , title=Historical Directory of Trade Unions , volume=2 , date=1984 , publisher=Gower Publishing , location=Aldershot , isbn=0566021617 , pag
13
, url=https://archive.org/details/historicaldirect0004mars/page/13 Initially a very small union, it had only 664 members in 1900, but then began growing, reaching 2,400 members by 1914. The

Amalgamated Society of Engineers The Amalgamated Society of Engineers (ASE) was a major British trade union, representing factory workers and mechanics. History The history of the union can be traced back to the formation of the Journeymen Steam Engine, Machine Makers' and Mi ...

(ASE) put out a call for other unions to amalgamated with it, and the Instrument Makers was one of seventeen unions which balloted its members on the proposal. The vote was passed, and in 1920 it merged with the ASE and eight other unions to form the

Amalgamated Engineering Union The Amalgamated Engineering Union (AEU) was a major United Kingdom, British trade union. It merged with the Electrical, Electronic, Telecommunications and Plumbing Union to form the Amalgamated Engineering and Electrical Union in 1992. History ...

References

Engineering trade unions Trade unions established in 1887 Trade unions disestablished in 1920 British scientific instrument makers Trade unions based in London