Ron: Your JzP 6 helmet looks like it has chemically darkened chinscales. Only JzP 5 and JzP 6 wore blackened chinscales. Darn scarce helmets, particularly with the proper chinscales, exceptionally nice helmet.
Yes, the chinscales on the 6th JzPferde helmet have been chemically darkened. All of my remaining helmets are "just the way I got them" other than being a bit more dusty and tarnished. I really prize unit markings and names in my helmets and uniforms and I have really enjoyed seeing the many examples of this on the forum.