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Amgueddfa Cymru – Museum Wales
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Helland-Hansen's Photometer, lantern slide
On the left, as it is sent down; in the middle, open for exposure; on the right, closed and ready for hauling up.
Collection Area
Industry
Item Number
86.8I/150
Acquisition
Donation, 8/1/1986
Measurements
Length
(mm): 82
Width
(mm): 82
Material
glass
Location
In store
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