Hey Roy,
There are a few thngs about this listing that make me step back, first, the seller has private feedback, and has had none in the past year, this is not always a bad thing, I have done business with a seller in Poland who has private feedback, and have gotten some good deals because others will not bid.
Second, there are a few features on the helmet that I find to be inconsistant with an item of the age this should be, the brass revit on the bottom of the spine does nt looke right to me, but I can not really say why. The star bolt on the spike base at the back (lower left photo) is miss shapen, the points are bowed up. The Brunswick Kocard looks to be too bright to be original.
Third, the seller's name does not instill confidence.
This is a high end helmet, that when encountered in person, requires very close look to avoid getting stung.
Best wihses
Gus