Where could one find a German paratrooper helmet for sale?

There are a few places where you could find a German paratrooper helmet for sale. Here are a few suggestions:

1. Online retailers: There are a number of online retailers that sell military collectibles, including German paratrooper helmets. Some popular retailers include:

* [Military Antiques](https://www.militaryantiques.com/)

* [RelicsMilitaria](https://www.relicsmilitaria.com/)

* [eBay](https://www.ebay.com/)

* [Amazon](https://www.amazon.com/)

2. Military surplus stores: These stores often sell used military equipment, including helmets. You may be able to find a German paratrooper helmet at a military surplus store in your area.

3. Gun shows: Gun shows are another place where you can find military collectibles, including German paratrooper helmets.