1809 50C XXX Edge AU58 认证号32919518, PCGS号6093

O.102a, R1. This variety is notable, and was collected for its different edge lettering. For reasons we can only guess, four of 1809's 15 varieties have XXX characters stamped into the edge. Four other varieties used III inscriptions. (One variety, the O.108 shows both.) A good guess is that this was done to repair flawed die bars but no one really knows. According to Ivan Leaman and Donald Gunnet's 1986 report, Edges and Die Sequences on Early Half Dollars... ...three of the 1809 edges bear ornamentation and are called the experimental edges. The third edge exhibits heavy vertical grooves at the beginning of each bar in front of FIFTY and HALF. The fourth edge is called the engrailed edge. There is a series of X-like figures at the front of the first bar and at the end of the second. The sixth edge contains only 106. There are light grooves in the front of HALF. We call this the pseudo-engrailed edge.

Ron Guth

The XXX edge is one of four edge varieties found on 1809 Half Dollars.  These include: XXX edge, IIIII edge, plain edge, and the so-called "normal" edge (with "a pseudo engraved in front of FIFTY" - per Overton).  Several varieties comprise the XXX edge: O-101, O-102, O-108a, and O-110.  Curiously, different die states of the same variety can have different edges.  For example, O-102 is found with the XXX edge, but O-102a is found with a plain edge.  Similarly, O-108 has a IIIII edge, but O-108a has a XXX edge.  Be sure to examine the edges of your 1809 Half Dollars carefully - it is quite possible that you could discover an unknown edge usage where it is least expected.