For the 1858 half penny there are five die varieties consisting of five obverse dies paired with three reverse dies. 


1858
Half Penny
Obverse
Reverse




The spacings are measured between the digits.


Obverse Dies:  The Date


Small Spacing between the 8 and the 5
Repunched 8 and 5


Small Spacing between the 8 and the 5


Large Spacing between the 8 and the 5



Large Spacing between the 8 and the 5
Repunched 5


Reverse Dies:  1/26

Gap between the numerator and the bar

Numerator touches the bar

Significant die crack


Reverse Dies:  1/26

Gap between the numerator and the bar

Numerator touches the bar


Reverse Dies:  1/26

Significant die crack