Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6438821TeitlDMHC04_193 - Dr Michael Harrison CollectionLefelSub-groupDisgrifiadColour slides showing sites and buildings in Dr Harrison's classification "Watermills & Water Pumps -10600".Cyfrwng5 slides. Photo.DelweddaunRhif Archif6438822TeitlDMHC04_194 - Dr Michael Harrison CollectionLefelSub-groupDisgrifiadColour slides showing sites and buildings in Dr Harrison's classification "Watermills & Water Pumps -10600".Cyfrwng20 slides. Photo.Delweddaun
