Challenge Coins

Siebe Gorman 6 Bolt Challenge Coin

The Siebe Gorman 6 Bolt is the 3rd in our series of collectable coins. The 6 bolt helmet was introduced by the Siebe Gorman Company of London in the early...
Challenge Coins set #1 in a series.

Challenge coin series set #1 has started off with the Savoie Helmet coin. Joe Savoie’s unique design changed the future of diving forever. His helmet was the first to incorporate...
Savoie Helmet Challenge Coin

The second in a series of limited production collectible “Helmets in History” challenge coins produced for and sold only by the Historical Diving Society USA. Each coin in the series...
20th Anniversary Challenge Coin

The first in a series of limited production collectible “Helmets in History” challenge coins produced for and sold only by the Historical Diving Society USA. Each coin in the series...