Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Research correspondence re. history of water power
50 letters of correspondence belonging to H.A. Thomas. Correspondence relating to research carried out by Mr Thomas into the history of water power and power generation.
Pwnc
Diwydiant
Rhif yr Eitem
78.114I/57
Derbyniad
Donation, 29/11/1978
Mesuriadau
Meithder
(mm): 331
Lled
(mm): 215
Deunydd
papur
Lleoliad
In store
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