The first in a series of limited production collectible “Helmets in History” challenge coins produced for and sold by the Historical Diving Society USA. Each coin in the series will highlight a diving helmet with a positive impact on deep sea diving.
Every coin produced has the original HDS logo of an Augustus Siebe helmet on one side and the featured “Helmets in History” helmet on the reverse. This coin features Kirby Morgan’s Superlite 17 helmet.
These collectible coins are 1.75″ in diameter, are highly detailed, and will be a prized possession for years to come. Each comes in a soft PVC envelope.
The Superlite series of helmets set a new standard for diving equipment. Leading the pack of lightweight, swimmable, surface-supplied helmets for the commercial diving industry, the Superlite was soon adopted by the military, as well as professional divers in many different fields of endeavor.