Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6145682Teitl945096_42 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Llechwedd Slate Quarries, Ffestiniog, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6145687Teitl945096_43 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Llechwedd Slate Quarries, Ffestiniog, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6145683Teitl945096_44 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Llechwedd Slate Quarries, Ffestiniog, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6145686Teitl945096_45 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Llechwedd Slate Quarries, Ffestiniog, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6145684Teitl945096_46 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Llechwedd Slate Quarries, Ffestiniog, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6145685Teitl945096_47 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Llechwedd Slate Quarries, Ffestiniog, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6145681Teitl94_CS_0718 - RCAHMW Colour Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW colour slide oblique aerial photograph of Llechwedd Slate Quarries, Ffestiniog, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6145690Teitl94_CS_0719 - RCAHMW Colour Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW colour slide oblique aerial photograph of Llechwedd Slate Quarries, Ffestiniog, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddauyRhif Archif6145688Teitl94_CS_0721 - RCAHMW Colour Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW colour slide oblique aerial photograph of Llechwedd Slate Quarries, Ffestiniog, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6427671Teitl960329 - Investigators' PhotographsLefelItemDisgrifiadBlaenau tunnel, southern portal, Llechwedd Slate Quarries.CyfrwngPhoto.Delweddaun
