This obverse was taken from the $50 half union pattern of 1877 J1546/P1719. It is a repeat of the same design from 1879 used on J1617-J1621/P1813-P1817. It was also part of a goloid set. To view Barber's set which included this design, click here. It was struck in the following combinations: Silver J1645/P1845 with over a dozen known. Copper J1646/P1846 About a dozen are known. Aluminum J1647/P1847 About 4 are known. Photo courtesy of Heritage.