Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6248687Teitl840761 - NMR Site FilesLefelItemDisgrifiadDetail of arch showing keystone with inscriptionCyfrwngPhoto.DelweddaunRhif Archif6291546Teitl840772 - NMR Site FilesLefelItemDisgrifiadEntrance to Level FawrCyfrwngPhoto.DelweddaunRhif Archif6144518Teitl925069_48 - RCAHMW Black and White Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW Black and white oblique aerial photograph of Level Fawr Adit Portal, Pontrhydygroes, Ysbyty Ystwyth, taken on 29/10/1992 by CR MussonCyfrwngPhoto.DelweddaunRhif Archif6144517Teitl92_CS_1319 - RCAHMW Colour Oblique Aerial PhotographsLefelItemDisgrifiadRCAHMW colour slide oblique aerial photograph of Level Fawr Adit Portal, Pontrhydygroes, Ysbyty Ystwyth, taken on 29/10/1992 by CR MussonCyfrwngPhoto.DelweddaunRhif Archif6424067TeitlAENT39_05_137 - Archaeological Reports_Evaluations (non Trust)LefelItemDisgrifiadDigital image of portal of Probert's Level Fawr, Pontrhydygroes with inscription of 1785, Bick, 1974CyfrwngPhoto.DelweddauyRhif Archif6065495TeitlNMR Site FilesLefelBatchDisgrifiad2 black and white prints showing Level fawr Portal, PontrhydygroesCyfrwngPhoto.Delweddaun
