Capped Bust Half Dollar Attribution Guide
Obverse: There are die lines between the end of the bust and the edge. (Obverse shared with O-108.)
Reverse: At the top of the "F" of OF, protruding just left of the serif, there is a short die line. A similar die line goes left from the bottom left serif of the first A in AMERICA. There is a die line connecting the upper pair of olive leaves to the middle left pair of olive leaves. It passes through the stem of the upper berry. There are die lines "evident on most specimens" (per the O/P book) between the end of bust and the edge.