Listen, I'm no expert, and frankly, I don't want to be. I stumbled upon a bag of miscellaneous German helmet parts in the midst of a larger collection of M1 helmets, liners, and restoration pieces. Being a bit of a tinkerer, I took the time to organize and photograph these parts, but I'll be honest—I don't know much about them, nor do I have any desire to become that expert. The photos should give you a decent idea of what's in the bag, and it's up to you to decide if any of it is useful. I did spend some time browsing websites and eBay to see if I could identify these parts and check their prices, and based on that, I've listed the lot at what I believe is a fair price. If this catches your eye, go for it!
I listed this as a single lot encompassing everything shown. I would prefer it also be sold as such, so no cherry picking, specific requests, etc. Buy it all, take from it what appeals to you, and pass the rest on down the line. That's a long-winded way to say, sold as is—you get everything shown, packed up nicely in one box.