In steel, non-magnetic, exterior with a smooth surface, painted in olive green, the protective edge of the helmet in a magnetic steel. There is a large magnetic comb (deflector crest) affixed to the top of the helmet via four rivets, the comb slotted on both sides near its front for ventilation. The front of the helmet incorporates a 42.5 mm (w) x 60 mm (h) French Army Infantry insignia in blackened magnetic metal, bearing the letters "RF" (Republique Francaise) on the bomb, the insignia slightly loose versus the helmet. The inside has a six-panel heavily frayed leather liner, the upper of which is finished in black, with a raw underside, each panel with a hole at the tip, with a black cloth drawstring fed through the holes and tied in a knot. The liner is backed with a gray pressed fabric, with four pads of steel between the liner and the body of the helmet at the 3, 6, 9 and 12 o'clock positions. The four pads are attached to two metal strips that form a cross pattern in the dome, all four points of the strips secured in place to the body of the helmet via twin rivets, the strip that traverses the sides of the helmet finished with integral loops that are intended to house the leather chinstrap, however, it has been lost to time. The helmet measures 225 mm in width x 310 mm in length x 145 mm in height, exhibiting moderate dents on both sides, the exterior with scattered paint loss in addition to surface rust on the helmet, comb and insignia, the paint loss also evident on the underside of the visor and the neck guard, the aforementioned six-panel leather liner with extensive fraying and wear that has forced its separation from the framework on the left side, both the liner and the gray pressed fabric with soling present. As worn.
Footnote: The M15 Adrian helmet was a combat helmet issued to the French Army during the First World War. It was the first standard helmet of the French Army and was designed when millions of French troops were engaged in trench warfare, and head wounds from the falling shrapnel generated by indirect fire became a frequent cause of battlefield casualties. Introduced in 1915, it was the first modern steel helmet and it served as the basic helmet of many armies well into the 1930s. Initially issued to infantry soldiers, in modified form they were also issued to cavalry and tank crews. A subsequent version, the M26, was used during the Second World War.