Since it first blessed us with its arrival, football has been in a constant state of change. Among its evolving elements are the rules about legal and illegal acts. Actions that were once illegal became legal, and the penalties associated with those actions disappeared as well. More important for this Tidbit was the disappearance or change in referees’ signals for those penalties, many of which we will resurrect below.
Excellent info on the Zebra herd of yesterday. Interesting signals