Russian Empire. Helmet model "Adrian" (Adrian) for the lower ranks of RIA sample 1916. It is a clone of the French helmet of the 1915 model. It was painted in the color "peas." The name was given by the name of the quartermaster general of the Paris arsenal August-Louise Adrian, a. It was in service mainly with the Russian Expeditionary Force in France. Very rare.
Early (aluminum comb rivets). Weight about 750 grams, metal thickness 0.7 mm. Size 55-57. The shoulder strap and strap are missing.