Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6135508Teitl91_CS_0172 - RCAHMW Colour Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW colour slide oblique aerial photograph of the Fridd Gap on the Sarn Helen, Trawsfynydd, taken on 26/02/1991 by CR MussonCyfrwngPhoto.DelweddaunRhif Archif6135509Teitl91_CS_0173 - RCAHMW Colour Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW colour slide oblique aerial photograph of the Fridd Gap on the Sarn Helen, Trawsfynydd, taken on 26/02/1991 by CR MussonCyfrwngPhoto.DelweddaunRhif Archif6135510Teitl91_CS_0174 - RCAHMW Colour Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW colour slide oblique aerial photograph of the Fridd Gap on the Sarn Helen, Trawsfynydd, taken on 26/02/1991 by CR MussonCyfrwngPhoto.DelweddaunRhif Archif6135529Teitl91_CS_0175 - RCAHMW Colour Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW colour slide oblique aerial photograph of the Fridd Gap on the Sarn Helen, Trawsfynydd, taken on 26/02/1991 by CR MussonCyfrwngPhoto.DelweddaunRhif Archif6135515Teitl945094_41 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Sarn Helen (Fridd Gap), Trawsfynydd, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6135514Teitl945094_42 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Sarn Helen (Fridd Gap), Trawsfynydd, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6135513Teitl945094_43 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Sarn Helen (Fridd Gap), Trawsfynydd, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6135512Teitl945094_44 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Sarn Helen (Fridd Gap), Trawsfynydd, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6135511Teitl945094_45 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Sarn Helen (Fridd Gap), Trawsfynydd, taken by C.R. Musson, 17/04/94CyfrwngPhoto.DelweddaunRhif Archif6135527Teitl945094_46 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Sarn Helen (Fridd Gap), Trawsfynydd, taken by C.R. Musson, 17/04/94CyfrwngPhoto.Delweddaun
