There are four die varieties for this coin consisting of four obverse dies and one reverse die.  The differences can be noted in the date.


1870
Penny
Obverse
Reverse






The spacing is measured between the digits.  The alignment is measured with respect to the top of the seven.


Obverse Dies:  The Date


Large Spacing between the 8 and the 7
The 7 and 0 are out of alignment


Large Spacing between the 8 and the 7
The 7 and 0 are in alignment


Small Spacing between the 8 and the 7
The 7 and 0 are in alignment


Small Spacing between the 8 and the 7
The 7 and 0 are out of alignment