The Scuttlefish brings us a collection of Diving Helmets from the past in their post Dive, dive, dive! (A Gallery of Helmet Art). Check it out!
About John Konrad
Captain John Konrad is the founder and CEO of gCaptain and author of the book Fire On The Horizon. John is a USCG licensed Master of Unlimited Tonnage and has sailed a variety of ships from ports around the world.