I'm surprised it's allowed.
In 1909 this was a fairly typical play. Teams even had handles on some players pants to help grip as the player was stuffed through the line.
In an October 30 game with Harvard, Cadet Eugene Byrne of Army suffered a broken neck and died the next day. Army cancelled the rest of its season.
During the off season rules were changed to essentially eliminate the play and encourage more passing. In a way those changed helped create the modern game as we know it.
The lower of these two covers probably carried tickets to that October 30 game.