Michigan Wolverines Riddell Kra-Lite-8 TK RAC suspension helmet in unused NOS condition.  The helmet is from 1970 and has never been used nor ever had a facemask mounted to it.  Helmet is complete as sourced from the Riddell factory with leather jawpads, painted wings and stripes, interior tagging, and Riddell heat stamps on the rear of the helmet.  It does not get any better!  We are in Michigan and thought we had seen every style of rare Michigan helmet - until this one.  We have never seen another one.