I keep looking at the helmet logo and it looks like something from the '70's, but would love to find out exactly what year it is from. I have seen that helmet logo design on some of my brother's game programs. I wonder if someone in the Athletic Department would have any background on it?
My dad has a few mugs just about like that one but has the season schedule with final scores of all the games on it. The years he has are 1971 and 1972. My guess the mug is probably from around the same era.