Need some help on 70s Steelers helmet

[Rade25]

http://www.ebay.com/itm/Pittsburgh-Steelers-game-used-helmet-1978-79-/352138198453?hash=item51fd127db5:g:RdMAAOSwH6tZjQQ Y

Any problems with this one?
THx for the help. Not a helmet expert at all.