This is an original HS-33 head set assembly. These were used by US Army Air Corps Pilots both in Fighters and Bombers During the second World War. The leather is in good condition and has some nice patina. The metal parts are in good condition and very usable. The wiring is in good condition and serviceable. They have a PL-354 plug. The leather has been cleaned and treated with saddle soap. These are all used and there are different colors of natural leather but they are in very nice condition for 70+ years old. The ones we have tested actually work just fine so these are usable. These are sold as singles and we do combine shipping.