It then dawned on me that the reason all the period sources talked about the silver ring was that is what they meant. A silver ring not the type of silver ring. What was important was the size of the cockade. 48mm for OR and Portapeeunteroffiziere and 55mm for officer. 65mm helmets were distinguished by a silver ring regardless of type. (No second size for Feldwebel types in 65mm units.) This thought has been agreed to in private correspondence by several leading European dealers. We have 65mm cockades of both kinds, 55mm cockades of both kinds , and 48mm cockades of both kinds
.they were created intentionally for use by NCO's.
.but I have come across over the years other JZP helmets with Cuirassier spikes on them, as well as Cuirassier field grey helmets with regular spikes on them. Two thoughts on this, again these helmets are war years helmets and they used the parts they had and or, they are War bond or vet put together helmets, again where parts where just thrown on it.