This is a leather helmet that resembles the NSKK helmet - but different. I do not know if the badge came with it, or was added later. What do you think? It has a removable ring around the outside for padding. It has two metal grommet vent holes above the ears. It has a 1" hole on each side in the wide strap- to allow for hearing. I can find NO stamp, or writing inside. The strap assembly is nailed onto the shell with small nails.