Here is an Adrian helmet from WWII era.
It is in used condition.
The metal shows signs of it's age and usage, some oxidization and dents and dings. One looks like a grazing bullet mark.
The Adrian helmet (French: Casque Adrian) was an influential design of combat helmet originally produced for the French Army during World War I. Its original version, the M15, 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 World War II.
The helmet adopted by the army was made of mild steel and weighed only 0.765 kg (1 lb 11.0 oz)), which made it lighter and less protective than the contemporary British Brodie helmet and the German Stahlhelm. Orders were placed for the helmets in the spring of 1915, which started being issued by July. By September, all frontline troops in France were issued with the helmet. The helmet was surprisingly complex to produce with seventy stages involved in its production, not including those required to prepare the metal