Original U.S. Vietnam War Era US Navy Pilot APH-6D Flight Helmet by Sierra Brunswick Rifle which threads through the appropriate

which threads through the appropriate Latitude hole in the lid between 40 degrees and 54 degrees

The national flag is just a bit bigger

This could have been caused by the same force that led to the holes

which unfortunately is not as resilient as the rayon or cotton often used with these flags

along with 11 for the gauge of the barrels

Original U.S. Vietnam War Era US Navy Pilot APH-6D Flight Helmet by Sierra Brunswick Rifle which threads through the appropriateOriginal Item: Only One Available. At the end of the 50's the APH series helmets introduced a new generation of flight helmets characterized by the external visor covered with a protective shield. Improvement of the communication system, internal liner and oxygen mask retainers was also made and in some versions the dual dark and transparent visors system was installed. These types of helmets were the US Navy and USMC standard jet aircraft headgears