Capped Bust Half Dollar Attribution Guide
1831 O-104 R1

Obverse: Both 1's in the date show signs of recutting and have small points for serifs. There are too distinct horizontal die defect lines below the bust. These may be missing on the late die states of the O-104. (Obverse shared with O-105.)

Reverse: A die defect line crosses the upper olive berry and joins the two upper pair of leaves.