2018 - brand new issue! Did you know the US Navy had the Mark 1, 2, 3, 4 before the famed Mark V helmet? Amazing details and photos are in this issue from the Lee Selisky collection. Lots of other great vintage diving articles in this 68 page publication from the Historical Diving Society USA. If you are interested in the history of US Navy diving helmets, without a doubt this is a must have!
The Journal of Diving History #94 The USN Mark I to Mark V Helmets
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