Nation's Attic Diving Into History Auction 2025 + More
Lot 107:
Description
This is an original early 20th-century A.J. Morse & Son Inc. non-return valve. These were mandatory equipment on most helmets, including the Mark V. They were threaded to the air fitting and prevented a sudden loss of air in the helmet if the air line was cut. This valve features a company stamp. If your AJ Morse helmet is missing one of these, it’s a must-have piece!
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.
Share this lot:
