Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Blasting in Stone Drifts (booklet)
National Coal Board Production Department
(Publisher)
Information Bulletin No. MM/49/6. '49/2' handwritten beneath bulletin number. 18 pages with additional 14 pages of appendices.
Pwnc
Diwydiant
Rhif yr Eitem
2018.42/3
Creu/Cynhyrchu
Derbyniad
old stock, 26/1/2018
Mesuriadau
Meithder
(mm): 330
Lled
(mm): 200
Deunydd
Card
Paper
Metal
Lleoliad
In store
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