Thanks for posting.  These are real neat photos.  One correction: The score of the 1970 game was 32-22.  With just a few minutes to go Ohio scored to come within three points.  Ohio then failed on an onside kick and PSU went in for a final TD.  This was the only game in the series, thus far, that Ohio had a legitimate chance of winning down the stretch.  I wasn't there, but I remember listening to it on the radio from my home in Chesapeake, Ohio, a bedroom community for Huntington, W.Va..  Ohio finished 4-5 that year and PSU was 7-3.  It was that evening that the Marshall team was killed in the plane crash.  So, Ohio's season was over.   Two Marshall assistant coaches -- Mickey Jackson and Carl Koker -- were at the Ohio-Penn State game in a scouting capacity so they lived to provide some coaching continuity for the Young Herd in 1971.

It was the 100th Anniversary of the NCAA.  Many, but not all teams wore the decal. Some information and MAC schools with the link: http://nationalchamps.net/Helmet_Project/1969.htm

No Mac Schools, but lots of neat college and pro helmets: http://www.helmethut.com/