This helmet was found in a bring and buy at larp fayre and came with the arming cap in the previous post to this.
The steel helmet reminds me in shape of an ancient Roman helmet, with its plume holder at the top, lacking the plume, perhaps it should have neck and face/ear guard plates as well, but the seller had no idea of its origin and neither do I
The helmet does come complete with a nose guard and thin leather drape to the back of the neck which would protect against sunburn, but not much else.
I will at some point add a nice feather plume to the top of the helmet if future me finds a use for this.
Overall considering the price and condition a good purchase.