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Glass negative - ¼ plate
Glass negative showing the safety lamp principle. Used in Safety in Mines Research Board Pamphlet No.2.
Collection Area
Industry
Item Number
2018.197/70.2
Creation/Production
unknown
Date:
Acquisition
Old stock, 23/11/2018
Measurements
Length
(mm): 82
Width
(mm): 107
Material
glass
Location
In store
Categories
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