That is Machine Doubling. How can we tell? It is flat, shelf like, a step lower and it reduces that edge of the design. On the doubled die reverses, the steps show notching, not reduced areas.

Machine Doubling is created after a normal strike and the die swings/bounces/moves damaging the devices. On real hub doubling you see the spread in the center (one the example above) in the center of the devices. Not on the outside edge, that MD affects the coins with. Hope this helps.

Machine Doubling is created after a normal strike and the die swings/bounces/moves damaging the devices. On real hub doubling you see the spread in the center (one the example above) in the center of the devices. Not on the outside edge, that MD affects the coins with. Hope this helps.



























