The ornamental design for a pitchinghorseshoe, substantially as shown and described.
FIG. 1 is a perspective view of a pitching horseshoe showing my new design.
FIG. 2 is a side elevation thereof.
FIG. 3 is an end elevation taken from the right of FIG. 2.
The side opposite FIG. 1 is unornamented. The characteristic feature of my
design resides in the calkers being on the opposite side of the horseshow
from the toe plate.