Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif6348276TeitlNMR Site FilesLefelBatchDisgrifiadPhotocopy of (part of) an O.S. map, and note of grid references, relating to Ynys-y-gerwyn Tinplate Works, Mill Stream.Cyfrwng1 file. Cartographic, Text.Delweddaun
