Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6441651TeitlDS2015_231 - Investigators' Digital PhotographyLefelBatchDisgrifiadInvestigators' Digital Photograpy of Floor 0 to Floor 5 incline, Diffwys Slate Quarry.Cyfrwng1 image. Photo.DelweddaunRhif Archif6441672TeitlDS2015_231_001 - Investigators' Digital PhotographyLefelItemDisgrifiadView looking east up counter-balance incline between Floor 0 to Floor 5 at Diffwys Slate Quarry.CyfrwngPhoto.Delweddauy
