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History
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The hand signal "OK"
The hand signal "OK"
Diver telephone c.1911
Diver telephone c.1911
A hard-wired diver communications unit mounted in a waterproof box for convenience of transport and protection. The loose speaker has been added to in
A hard-wired diver communications unit mounted in a waterproof box for convenience of transport and protection. The loose speaker has been added to increase output volume. There is a built in speaker behind the perforations on the panel.
Inside a Kirby Morgan 37 helmet showing the microphone in the oro-nasal mask, and one of the speakers at the top of the photo.
Inside a Kirby Morgan 37 helmet showing the microphone in the oro-nasal mask, and one of the speakers at the top of the photo.
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Surface-supplied divers riding a stage to the underwater workplace
Surface-supplied divers riding a stage to the underwater workplace
Mild barotrauma to a diver caused by mask squeeze
Mild barotrauma to a diver caused by mask squeeze
Views through a flat mask, above and below water
Views through a flat mask, above and below water
Recreational breath-hold divers in basic equipment with floats and catch bags suitable for collecting lobster or shellfish
Recreational breath-hold divers in basic equipment with floats and catch bags suitable for collecting lobster or shellfish