Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
The Prestwich Patent 'Protector' Lamp (leaflet)
Leaflet showing a lamp surrounded by six flames reacting to various percentages of firedamp.
Pwnc
Diwydiant
Rhif yr Eitem
2017.38/679
Derbyniad
Old stock, 27/2/2017
Mesuriadau
Meithder
(mm): 307
Lled
(mm): 182
Deunydd
papur
Lleoliad
In store
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