Original U.S. WWII Army Air Force Aviator AN 6540-35 Flight Helmet With Goggles & ANB H-1 Receivers - Helmet By Slotte & Klein Lock Assembly These were one of the

These were one of the most used German issued binoculars of WWI

We estimate that it dates from the 1930s

Even at 35

and foil allowed for greater speed as the fencer needed less and less protection for himself as double hits became more and more allowed in the sport fencing

Even better than that is the unit marking stamped into the top flap:

Original U.S. WWII Army Air Force Aviator AN 6540-35 Flight Helmet With Goggles & ANB H-1 Receivers - Helmet By Slotte & Klein Lock Assembly These were one of theOriginal Items: Only One Set Available. This is a very nice flight helmet set, which was exactly what Aviators of the U. S. Navy used during WWII. The helmet is a very nice khaki tan canvas "summer weight" style, and has a nice chamois lined "visor" and ear cups. The chin strap is still intact. It still has the original maker label at the rear: SIZE MEDIUMCONTRACT No. N288s 27405SLOTE & KLEIN, INC. Slote & Klein made many summer and winter flight