Is This A DDO On Liberty?

It happens on any coin that is struck. The movement of a looks machine damages the fresh struck devices an alters them. It can be different on each coin as well.

Found in rolls from the same batch. Note the same marker and the strike was different on each example posted here. So depending on how loose the machine is, it damages the coin when rising off the strike. Sometimes mild, sometimes crazy:


When the coin is damaged, the affected area will be incuse and have a 90 degree angle on the affected area. Just an alteration on normal and doubled dies. But only a doubled die, can create a doubled die coin. Machine Doubling never creates a doubled die, only a doubled die can create a doubled die coin. The Machine Doubling is never part of a doubled die. On the 1968-1972 cents it is very common to see this on the cents. Larger denominations often have altered devices on them.




On a doubled die, the devices will be wider/taller. Sometimes even showing a large spread:



Spread.