In the past deep sea divers had suits with heavy helmets and an

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Vintage Photos Show the Evolution of Deep Sea Diving

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Vintage Photos Show the Evolution of Deep Sea Diving

Vintage Photos Show the Evolution of Deep Sea Diving

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In the past deep sea divers had suits with heavy helmets and an air hose attached. There are stories of the air failing. Because of the extreme pressure, they have found nothing

old school deep sea diving suit — Unknown Worlds Forums