Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Abernant Colliery, docs. re sinking of new shaft
Printed in black ink on cream paper. National Coal Board South Western Division Area No.9. Abernant Colliery. Cross section of 18ft three piece arch roadway Scale : 3/8" to 1ft Dated 1.1.58.
Pwnc
Diwydiant
Rhif yr Eitem
88.99I/37
Mesuriadau
Meithder
(mm): 380
Lled
(mm): 515
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