Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6147727Teitl92_CS_1167 - RCAHMW Colour Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW colour slide oblique aerial photograph of the Welsh Main Colliery, Glyncorrwg, taken on 21/10/1992 by CR MussonCyfrwngPhoto.DelweddaunRhif Archif6147728Teitl92_CS_1168 - RCAHMW Colour Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW colour slide oblique aerial photograph of the Welsh Main Colliery, Glyncorrwg, taken on 21/10/1992 by CR MussonCyfrwngPhoto.Delweddaun