Capped Bust Half Dollar Attribution Guide
1819 O-106 R4

Star 1 points between dentils. 18 is wider than 819. Accent mark shows above second 1.Two or three die lines just left of first 1 flag. All of the 1819 overdates share the same style 1s, different from the regular 1819 marriages.

Notch at right base of As at right. Right sides of I and T are in line. (Reverse shared with O-105.)