Eddy! EDDDYYYY!
I just figured somethin' out!
Look at your nickel from the shop ... measure from the tip to the other side of the nickel ... five inches....
measure one side from pinking tip to center 2.5 inches .... don't mind the other side ...
now, turn the nickel 180 degrees ... so the other side is under your ruler ... measure from the tip to the center ... 2.5 inches, right?
right????
right????????????????????
I'm sure I am correct!! the nickel from pinked tip to pinked tip is five inches ... don't try to find the center because the tips are usually opposite a valley ... see what I mean?