The ‘US USN MS22001 Oxygen Mask 1958 Dated’ is a vintage piece of military and aviation history. The mask was used by the United States Navy (USN) and is a model MS22001, which signifies its military specification. This particular mask is dated back to 1958, during the Cold War era. As an oxygen mask, it was designed to ensure that pilots had a consistent supply of oxygen at high altitudes or in emergency situations. It is often sought after by collectors of military memorabilia due to its historical significance and its importance in the advancement of military aviation technology. This item provides a tangible connection to the past and offers a fascinating insight into the technological capabilities of the mid-20th century.