Comprises: Folder labelled "1143: TU/NUM: 76-80" containing correspondence and background papers regarding Callaghan's attendances at the 1976, 1977, 1978 and 1979 Durham Miners' Galas. Also includes photograph of members of Durham Miners Association, Trimdon Grange Colliery and transcript of speecch given by Roy Hattersley to the Annual Conference of the Chartered Institute of Public Financs and…