@RonSanderson- Folks should use your technique for close-ups of die clashes, cracks, doubling and other anomalies. I would, if I knew how!
You may enjoy the thread “GTG - 1924 Standing Liberty“ (https://www.cointalk.com/threads/gtg-1924-standing-liberty.330730/) where a number of questions were asked and animated close-ups were used to evaluate areas of interest.