Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Basic Open-Hearth Steel Industry Embraces Furnaces (article)
Article from the Iron Trade Review - September 29, 1927, pages 773-780. Black print on white paper. Includes two black & white printed photographs.
Pwnc
Diwydiant
Rhif yr Eitem
86.129I/434
Derbyniad
Bequest, 8/9/1986
Mesuriadau
Meithder
(mm): 295
Lled
(mm): 220
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papur
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