This is a HGU-56/P Aircrew Integrated Helmet System (AIHS)

Original Gentex HGU 55/P Flight Helmet size Large with gray MBU 12 mask size Long,

Original HGU33/P F-14 Tomcat fighter pilot helmet size Medium

Original HGU 26/P Helmet with PRU 36 double visor housing

Original SPH 4 Helicopter Helmet Size X-Large original green painted

Original Gentex SPH 4 Helicopter Flight Helmet modified with double Visor Housing and visors dark and clear

Original German Phantom F 4 Fighter Pilot Helmet HGU 55/G Flight Helmet with MBU 5/P mask and „WEA“

This is a original HGU 2AP/G flight helmet came from an retired German Airforce Pilot

Original US Army Gentex SPH 4 B Helicopter Flight Helmet,double Visor dark and clear,

Original SPH-4/G Helicopter Helmet Size X-Large