I recently bought a box of old norwegian Home guard items. Among these items were these two helmets. At first I thought they were british lids, wich were common among norwegian troops after ww2. Now I realized they're american. At least one is an m1917a1 marked 12B on the inside of the rim. The other one is unmarked, and have a liner I haven't been able to identify. It's kinda cheap looking and attached with three split pins. Both have quite identical olive green colour and a smooth finnish, not textured as seems standard for a m1917a1 . I've been browsing various forums now, and seen loads of m1917a1's, but non like these.
What do you guys think about these lids?