I recently came across this picture at EBAY
http://www.ebay.de/i...0EAAOSwZ8ZW8VwZ
Although the description tells that it is a helmet prototype of Nigel Mansell, it clearly shows Rupert Keegan in the 1982 Rothmans-March.
But what is the story behind the strange helmet support? I never seen a picture of it before, maybe Keegans neck wasnt strong enough to cope with the G-forces?