Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6514535Teitl73_113_0765 - Ordnance Survey Vertical Aerial Photography CollectionLefelItemDisgrifiadBlack and white aerial photograph of Pen yr Orsedd Slate Quarry taken by the Ordnance Survey on 25th April 1973 at an altitude of 7500 feet. Grid reference SH5154. Print enlargement (c. 20") taken from 9" film roll.CyfrwngPhoto.DelweddaunRhif Archif6514536Teitl73_113_0766 - Ordnance Survey Vertical Aerial Photography CollectionLefelItemDisgrifiadBlack and white aerial photograph of Pen yr Orsedd Slate Quarry taken by the Ordnance Survey on 25th April 1973 at an altitude of 7500 feet. Grid reference SH5154. Print enlargement (c. 20") taken from 9" film roll.CyfrwngPhoto.DelweddaunRhif Archif6234554Teitl870000 - NMR Site FilesLefelItemDisgrifiadTop quarry looking west. No accession number.CyfrwngCartographic, Photo.DelweddaunRhif Archif6234555Teitl870001 - NMR Site FilesLefelItemDisgrifiadAnchorage for aerial ropeway. No accession number.CyfrwngPhoto, Cartographic.DelweddaunRhif Archif6234556Teitl870002 - NMR Site FilesLefelItemDisgrifiadClose up blondin V tail anchor (front). No accession number.CyfrwngCartographic, Photo.DelweddaunRhif Archif6234557Teitl870003 - NMR Site FilesLefelItemDisgrifiadGeneral view SE across New Quarry from blondin anchor. No accession number.CyfrwngCartographic, Photo.DelweddaunRhif Archif6234558Teitl870004 - NMR Site FilesLefelItemDisgrifiadTop quarry looking SW. No accession number.CyfrwngCartographic, Photo.DelweddaunRhif Archif6284639Teitl870005 - NMR Site FilesLefelItemDisgrifiadTop quarry looking SW. No accession number.CyfrwngCartographic, Photo.DelweddaunRhif Archif6234559Teitl870006 - NMR Site FilesLefelItemDisgrifiadAerial ropeways S of top quarry. No accession number.CyfrwngCartographic, Photo.DelweddaunRhif Archif6234560Teitl870007 - NMR Site FilesLefelItemDisgrifiadAerial ropeways S of top quarry. No accession number.CyfrwngCartographic, Photo.Delweddaun
