Casgliadau Arlein

Amgueddfa Cymru

Chwilio Uwch

Testun rhydd

Rhif yr Eitem

Adnabyddiaeth

Pwnc

Artistiaid/Creadur

Lle

Categori

Cofnodion â delweddau yn unig

Nôl i Ganlyniadau

Blasting in Stone Drifts (booklet)

National Coal Board Production Department

Supplement to Information Bulletin No. 49/2. Information Bulletin No. 56/166. 4 pages and a diagram.

Pwnc

Diwydiant

Rhif yr Eitem

2018.42/136

Creu/Cynhyrchu

National Coal Board Production Department

Dyddiad: 1956

Derbyniad

Old stock, 26/1/2018

Mesuriadau

Meithder (mm): 331

Lled (mm): 204

Deunydd

cerdyn

papur

metel

Lleoliad

In store

Categorïau

coal 1950s

Dosbarth

processes blasting

Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.

Eitemau cysylltiedig

Diwydiant

Long-Hole Blasting (booklet)

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2018.42/160

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Number of Holes and the Charge per Round in Stone Drifts (booklet)

National Coal Board Production Department

2001.1/1038

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A Design of Fan Drifts (booklet)

National Coal Board Production Department

2001.1/1043

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Experience in Compressed Air Blasting (booklet)

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2018.42/188