1852 United States Assay Office of Gold $50. K-13. Rarity-5. 887 THOUS. AU-50 (NGC). With multiple offerings of many California Gold Rush era $50s "slug" varieties, this sale is truly a memorable event for specialists in this popular, yet extremely challenging series. We are pleased to present this second AU example of the 1852 U.S. Assay Office of Golds K-13 issue, readily identifiable by its 887 THOUS fineness on the scroll above the eagle. It is a lovely coin with iridescent reddish-rose highlights to a base of warm, even, honey-olive color. Well defined overall, there is only the expected bluntness to the high points of the eagle in the center of the obverse. Scattered surface marls and a few minor rim bruises are noted, none of which are unusual for the type, and none of which are worthy of singular mention. Visually appealing, historically significant, and sure to draw strong bids from many quarters. PCGS# 10016. NGC ID: 3TN8.