Horizontal cards in the 1974 football set were extremely rare. There were only about 7 or 8 in the entire set. The 1974 baseball set had a few more but were still not common. Ron Santo was featured on one of the horizontal cards in that set.
He also had a vertical card in the 1974 Traded set. That card was the same photo used on the 1973 card airbrushed to look like a Whit Sox card. Topps football of course did not have a traded set. I took a few liberties with this one.