Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6441677TeitlDS2015_234 - Investigators' Digital PhotographyLefelBatchDisgrifiadInvestigators' Digital Photography of the 'R' incline, Diffwys Slate Quarry.Cyfrwng1 image. Photo.DelweddaunRhif Archif6441678TeitlDS2015_234_001 - Investigators' Digital PhotographyLefelItemDisgrifiadView looking east to the 'R' incline plane and drum house at Diffwys Slate Quarry.CyfrwngPhoto.Delweddauy
