Originally Posted by kronckew
... Could they be for attaching a padded lining? Ear flaps were I gather, frequently padded along with the suspension/padding for the main part of the head.
Well, at a certain stage in one of these helmets description in the Web, it reads:
"... and the neck guard is stamped from a single piece of metal to simulate an articulated version. The edges, retaining rivets, were originally used to secure the lining... "