Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Collection of tech. drawings re pit props
Engineering Drawing - Blueprint Copy of provisional specification relating to reusable props for support of roofs No. 34306, Nov 28
Pwnc
Diwydiant
Rhif yr Eitem
87.156I/11
Historical Associations
Associated Person/Body: National Coal Board, South Western Division
Associated Person/Body: National Coal Board
Association Type: Coal company
Derbyniad
collected officially, 14/8/1987
Mesuriadau
Meithder
(mm): 535
Lled
(mm): 661
Techneg
Dyeline
Deunydd
Paper
Lleoliad
In store
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