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‘Sea-sounding instrument’ based on atmospheric pressure, 1936
E. E. Wigzell, London and Glasgow
Maker:
Collectie:
NavigArte
A depth gauge operating on the principle of water pressure: the water column rises inside the instrument as depth increases. Once back on deck, the depth can be read using the calibrated wooden scale.
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Atmospheric Sea-Sounding Instrument – Wigzell, London
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