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Marconi Internat. Marine Co Ltd, calibration cert.
Black print on white paper. The Marconi International Marine Co. Ltd. certificate of calibration of direction-finder. Blank.
Collection Area
Industry
Item Number
87.15I/24
Acquisition
Donation, 6/3/1987
Measurements
Length
(mm): 148
Width
(mm): 210
Material
paper
Location
In store
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