Capped Bust Half Dollar Attribution Guide
1818 O-112 R1

Stars are large and close to milling. The first 18 is wider than the second 18. The 81 is close

There is a die line from the base of I to the C in AMERICA. Most, but not all, have a die crack from the edge below 50 C. to the top of UNI and to the milling above D.