I once searched a $50 Mint bag of Lincoln cents and found 228 of the same die clash. In order to be 100% sure that the clash is from the same dies, you need to find markers that are specific to them. In my case, I found a pair of die scratches that were on all of the coins. Chris
ok thanks chris ,would this be any indication all have a area that looks rippled.i will keep looking I still have over 300 pennies to go see if I can match them to a specific die
No! Those ripples appear to be die deterioration. Look for a gouge, scratch or some other anomaly that would remain constant. Note: A crack isn't always a constant. Chris