12-21-2014, 12:07 AM
I have a picture of that same helmet saved, though it is taken from a different angle. My tags say that it was in the Merrin collection, at least at one time. I'm not sure if it really was, but apparently I had reason believe that at one time. Maybe you could email Merrin? I have no idea whether they are at all reputable, but maybe they can help.
http://merringallery.com/contact.html
http://merringallery.com/contact.html