Capped Bust Half Dollar Attribution Guide
1827 O-142 R3

Obverse: On the 2 there is a tall vertical serif. The bottom of the 8 is thin. (Obverse shared with O-143.)

Reverse: 2 lines of stripe 4 extend into the crossbars. There are 2 die lines in the field below the left wing and the die is unfinished in the leaf area.