Original Chinese Air Force Cold War TK-1 High Altitude Flight Helmet Set Category_MG 42 Display Guns & Part Sets due to the 1877 patent

due to the 1877 patent date

The reverse side has a type written note taped to it that reads:I wore this patch when I was in the Air Photo Unit of the 509th at Operation Crossroads

During wartime or national emergencies

with its distinctive "coal scuttle" shape

two garrison Side Caps

Original Chinese Air Force Cold War TK-1 High Altitude Flight Helmet Set Category_MG 42 Display Guns & Part Sets due to the 1877 patentOriginal Item: Only One Available. This is a rare complete Chinese Air Force Cold War era Tk 1 high altitude flight helmet. The TK1 is comprised of three main parts; Nylon under helmet with communication components (transceiver and receivers, fire resistant lace up hood with neck protection and external rigid plastic shell with removable air tight clear face visor. The visor incorporates oxygen and communication lines. Visor is also heated to prevent