Nation's Attic Diving Into History Auction 2025 + More

DESCO Free Flow Pot Hat Diving Helmet #320

The auction will start in __ days and __ hours

Start price: $300

Estimated price: $750 - $1,500

Buyer's premium:

Description

Starting in 1968 DESCO (Diving Equipment and Supply Company) debuted the now iconic and still in use Air Hat. These helmets are also known as Free Flow or Pot Hats. Constructed of spun copper with a large acrylic window, this model is one of the most widely used helmets in the world.

This helmet is serial #320. As shown in the photos, the helmet exhibits a very nice consistent patina to the heavy copper body. There is one shallow dent on the top of the helmet, otherwise this Free Flow helmet is nearly flawless. All of the internal components appear to be present. The neck ring hardware is also present along with original rubber neck dam. This helmet has been on display and preserved for the past 20+ years in a private collection.

All diving helmets in this auction will be accompanied by a certificate of authenticity from Nations Attic. The certificate will have a unique number that will match the number on a tamperproof hologram decal placed inside the helmet. This information will be kept on permanent file at Nations Attic and help ensure the provenance of the helmet and authenticity.

All items will be shipped with a signature required upon delivery and full insurance either via FedEx or the USPS Priority Mail. Worldwide shipping is available; however, no ocean freight will be offered on large items. DHL express is an option for international shipments under 600 pounds via air. A shipping quote prior to the auction can be provided by emailing your postal code.