Rhif Archif
6320269
Disgrifiad
Brief manuscript notes by Stephen Hughes and copy of an extract from "Mines, Mills and Furnaces" by D. Morgan Rees (London, 1969)
Enw Casgliad
NMR Site Files
Cyfrwng
Text.
Cychwynnwr
Stephen R. Hughes, D. Morgan Rees
Dyddiad
1969 to 1977