Click to enlargeJA1915-3/P3548

This is a hub trial from both the obverse and reverse hubs of the 1915 octagonal Panama Pacific Exposition 50 dollar coin struck on an oversized, 60 mm, copper planchet.

It is unique and is ex Kreisberg-Schulman 3/64 (Brand-Lichtenfels), Kaplan, Swiatek-Heritage 1/15 FUN as NGC65RED, Bonhams 12/16, Heritage 4/21 - PCGS65RED.

Photo courtesy of Heritage.