26617, as used by many German pilots! During WW1, most pilots quickly realized the need for protective headgear due to the cold weather effects while in an open cockpit. As no headgear was readily available, pilots were forced to utilize commercially produced leather motorcycle and automobile helmets. During WW2, the German military produced approx. 10 variations of flight helmets for various operational conditions, as well as with or without radio communication equipment. This specific helmet was designed with radio equipment for fighter and bomber pilots. Made of cotton and fleece, this helmet is GOOD used condition. There are no rips or tears in the fabric, however, as you can see in the photos, the interior features quite a bit of damage (water, I believe). All snaps, tabs, and buckles work correctly, however there is some corrosion, as you can see in the photos. All straps are fully adjustable, and the data label is still intact indicating, LKpS101, Fl. Size is marked as a 56. As it is in used condition there is a bit of wear and marks. The leather covers for the earphones are also still fully intact! Cord is still present, however it is cracked in quite a few places, as you can see in the photos. Sadly, the snaps on the throat mic are missing… But those could be easily replaced. Probably a good starter helmet for a novice collector. Ould make a FANTASTIC and VERY RARE addition to any collection or display!