Butterley Company correspondence file on income tax Including on colliery assessments, 1924-1936, provisions of the Finance Act 1937 for Pay-As-You-Earn, wear and tear allowances, and rents and royalties. Including loose copies of speech on importance of paying income tax, c1940, and plan of site of shafts for Ormonde, New Langley and (closed down) Bailey Brook collieries, c1940 May 1924-Jun 1946