Capped Bust Half Dollar Attribution Guide
1822 O-101 R1

Star 1 points between dentils. The date is progressively lower from left to right. The second 2 is much heavier than the first 2, most notable at the base. A tiny vertical die line goes through the middle of the 2, from base through tip of curl. Star 7 points to lower edge of dentil, to upper edge of headband, and is very close to it. Star 13 has a blunt point, and is very close to the curl.

Crossbar 4 extends far into right wing. There is a small centering dot between crossbars 4 and 5 at left. I is under the right serif of A.