Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Testing of Colliery Wire Ropes (booklet)
National Coal Board Production Department
(Publisher)
Information Bulletin No. 55/155. 5 pages and appendices.
Pwnc
Diwydiant
Rhif yr Eitem
2018.42/127
Creu/Cynhyrchu
Derbyniad
old stock, 26/1/2018
Mesuriadau
Meithder
(mm): 331
Lled
(mm): 204
Deunydd
Card
Paper
Metal
Lleoliad
In store
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