re: LSU pitchers signals back in the day

From catcher to pitcher when nobody is on second the signals for the pitch type are the same. How they call location can be a little different. When a runner gets to second they have a number of indicators that signal the next sign is the pitch. Catchers change that up a few times during the game which is why you will see a pitcher and catcher talk when someone gets to second. During night games if the pitcher can't read the fingers they will do signals like a third base coach.