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Amgueddfa Cymru – Museum Wales
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Expanding jumper drill
Inscription on card on object :- "Rock drill known as 'expanding jumper' made for widening the bottom of shot holes, drilled by other tools, for blasting"
Collection Area
Industry
Item Number
29.295/4
Historical Associations
Association Type: Place name
Place: Porthmadoc
Creation/Production
Role: Production
Role: Manufacturer
Period: 1870 (circa)
Acquisition
purchase, 1929
Location
In store
Classification
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