re: LSU pitchers signals back in the day

The way I understand is it is the system of counts and pauses you are looking for.

For instance if a coach give 4 bounces, before either a pause or a change in direction of his point, then that means the fourth set of bounces will be the call.

So imagine the following numbers as a bounce, with the commas as a change in direction or an obvious pause.

3,4,1,2,5

3= indicator notating that the 3rd set of bounces, the 1 in this case, is the desired pitch.

So in the above description the call would be for the fastball (typically)

Location is usually indicated by which side the coaches last set of bounces is on. So in the above example if the last set, the 5, ended on the right-hand side of the coach as it appears from the catcher, then the call would be the catcher's right hand... outside to a righty, or inside to a lefty.

I hope this helps. This is how we utilized it in high school. Sometimes we called location based on our coach's foot positioning, i.e. crossed or uncrossed for in and out, feet flat for down and toes up for up in the zone.