I think this is the right category to post this, so here it is. I saw this helmet on the internet, and am wondering what it is exactly. I believe it is a M40 helmet with a foreign-post war suspension put into place. I know it is not original to the helmet, as one can clearly see the bolts of the suspension system are left unpainted. I'm curious as to if this helmet was perhaps modified and used for post-war purposes. I have little knowledge on German helmets, but this one really perplexed me.