The 1960 and 1960D small dates
The Large and Small Date varieties can be distinguished in the following ways:
1) The tail of the 6 in the Large Date is much longer than that of the small date.
2) The top of the 1 in the Small Date is level with the top of the 9. In the Large Date the top of the 1 is
below the top of the 9.
3) The 0 is perfectly round the Large Date. In the small date the 0 is "skinnier".
The best way to see the difference is get one of each and compare for yourself. Only the 1960 small
date is considered rare. The 1960 D small date is a common Lincoln cent.
The diagnostic for the 1960 proof small date is the same as the business strikes.