I can post additional pics of the Strap. Regardless if the strap is repro or not the helmet itself is near mint and another chinstrap could be added later on. I will probably leave it just as is.
Steve,
Here mine that I recently Purchased from a fellow forum member. Interesting that both of these Wurtt Helmets have the vented rear spine.
Does Yours also have a slot cut into the helmet under the vent?
Wayne