The pin is 2 3/8” long & 3/4” wide at the widest point. Based upon the style of the crystal, this is probably a mid century Kremetz piece. It is in very good condition, with just a slight bend in the left side stirrup (left, if looking at the front.) The pin is secured with a rolling “C” locking clasp.
This lovely stock pin or brooch is set in sterling silver. It features the crystal mounted inside a horse shoe & suspended between 2 stirrups & leathers.