National Association of Operative Plasterers
The National Association of Operative Plasterers (NAOP) was a trade union representing plasterers in the United Kingdom.
The union was founded in 1860 and regarded itself as an amalgamation of three local societies. It immediately attracted a high membership for a union of the time, having 4,802 members in 1866, and although this fell to 2,400 by the end of the decade, it rose to 5,199 in 1876, representing nearly 20% of the total workforce.
In 1895, both the Liverpool Operative Plasters’ Trade, Accident and Burial Society, and the Metropolitan Trades Society of Operative Plasterers merged in, taking membership to 11,000, and a three-month strike in 1898 produced a national agreement on wages and working conditions.
The union joined the National Federation of Building Trade Operatives in 1918, under the name of the National Association of Plasterers, Granolithic and Cement Workers. It left the federation in 1924, but re-joined in 1933. The Scottish National Operative Plasterers’ Union finally amalgamated into the NAOP in 1967.
In 1968, the union merged into the Transport and General Workers’ Union.
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