this is Lincoln Green Leader
The basic issue is that either the layer aims at the target and some mechanism aligns the gun at the future (time of flight) position of the target or the layer aims at the future position of the aircraft
The cap is lined with what looks to be an olive green cotton rayon blend fabric
The filter is still very attractive and solid
not to be confused with other Campaign Medals bearing a similar title
Original U.S. WWI 6th Infantry “Sight Seein’ Sixth” Division M1917 Doughboy Helmet Named To Pvt John Lesson 11th Field Artillery, Gassed During Meuse Argonne Offensive - Complete, With Research MG 34 Feed Assembly this is Lincoln Green LeaderOriginal Item: Only One Available. This is a fantastic, genuine American made Great War hand painted 6th Infantry Division helmet, which features a lovely painted red star insignia on the front. The helmet is actually named on the chinstrap to Private John A Lesson, 11th Field Artillery Regiment and attached to the 6th Infantry Division for most of the war. He enlisted on April 29, 1918 and served overseas from August 14, 1918 to May 22, 1919,