1851 Humbert Fifty Dollar, 887 Thous., MS63 Tied for Finest Known 1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS63 NGC. K-6. Target Reverse. AUGUSTUS UNITED STATES ASSAY OFFICE OF GOLD SAN FRANCISCO and date around the outer margins of the obverse and majestic eagle center. This is an exceptional Humbert fifty dollar iconic gold slug that is the epitome of all Pioneer Gold coinage. It is a “wonder coin” that has managed to survive for 163 years in remarkable shape. The surfaces still show generous mint luster with orange-gold prevailing, deepening into brownish-gold near portions of the upper obverse and the central reverse. There are none of the usually seen rim bumps or heavy abrasions. This MS63 specimen is tied for the Finest Known Specimen. An MS62 PCGS example brought $440,625 in a January auction. This superior specimen only 295,000