Studstill played 11 years of professional football for the Detroit Lions, Los Angeles Rams, and New England Patriots. In the pros he played wide receiver and punter. One of the things he is most famous for is that he was the last pro player to not use a facemask.
Today's card is the 1966 Philadelphia #75. Philadelphia brand was a major card manufacturer at the time who had a license with the NFL while Topps had an AFL license.
While Philadelphia cards had more simple designs than modern cards, they still looked very different from Topps cards. To me, Philadelphia cards looked more realistic and less artistic/cartoonish than Topps cards.