Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Mining Technology (journal)
Mining Technology - Journal of the Institution of Mining Electrical and Mining Mechanical Engineers, Volume 66, No. 761, March 1984. Booklet - printed in black ink on white paper. The front cover contains an advert for the Calvox III signalling equipment, printed in black and blue ink.
Pwnc
Diwydiant
Rhif yr Eitem
85.135I/13
Mesuriadau
Meithder
(mm): 297
Lled
(mm): 210
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