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Amgueddfa Cymru – Museum Wales
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Collection of tech. drawings re pit props
Engineering Drawing National Coal Board, South West Division, roof control department Showing need for special supports at roadheads in highly inclined seams
Collection Area
Industry
Item Number
87.156I/7
Acquisition
Collected officially, 14/8/1987
Measurements
Length
(mm): 436
Width
(mm): 370
Techniques
dyeline
Material
paper
Location
In store
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