Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6149209Teitl871491_22 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Onllwyn Colliery Eastern Incline on the Brecon Forest Tramroad, Ystradgynlais, taken by CR Musson on 20/01/88CyfrwngPhoto.Delweddaun
