Diving Helmet (Top)

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Top view of diving helmet. C, Air inlet valve; E, Regulating outlet valve; G, Glasses in frames; L, Eyes to which air pipe and life line are secured; and P, Connection for telephone cable.

Keywords

dive, diving helmet, scuba gear

Galleries

Aquatics

Source

Encyclopaedia Britannica (11th ed., vol. 8) (New York, NY: The Encyclopaedia Britannica Company, 1910)

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