Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Penallta Colliery, compressors, eng.drgs.
Engineering Drawing Plans showing foundations for one Zoelly mixed pressure steam turbo compressor 40,000 cubic ft., 2900 to 3200 r.p.m. with B.B.C. compressor Drg.No. 222430, 9.4.24.
Pwnc
Diwydiant
Rhif yr Eitem
87.152I/10
Mesuriadau
Meithder
(mm): 604
Lled
(mm): 856
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