Here is a beauty of a schedule coin produced by the makers of Pinch Scotch Whiskey.  You can see that we had a pretty tough non-conference schedule that year with LSU, Indiana, TCU and Miami.  It appears that home games are marked with an "*" following the team name.

Below are the 1977 and 1979 versions, including non-conference games against Washington State, Alabama, Baylor, and Indiana in '77, Utah State, Iowa, Penn State and New Mexico State in 1979.