This is a French Model 1915 Adrian helmet worn by a member of the humanitarian French Red Cross (Croix-Rouge Française, CRF) organization. The exterior shell is painted white and features a CRF with red cross plaque badge on the front. Accompanying the helmet is a CRF pin.

France World War I
Infantry Helmet 1915 — 1922
FRH-211-0709

Description by Jordan Winter