Capped Bust Half Dollar Attribution Guide
Obverse: There is an obvious opening in the milling just left of the peak of the cap. The small 3 is nearly closed at both the top and the bottom.
Reverse: just like on the rare O-121 - there is an extended lower tail feather through the olive stem. Also on the reverse there are corrugated raised areas left of the 5 of 50 C. These corrugated areas become very weak on Late Die States.