KM-20; CJ-31(unlisted die paring). <strong>RARE</strong> date and one of the keys to the series. Interesting to note when comparing the plated examples in Janson the obverse die matches that of the 1831/0. This would indicate that this die pairing was used late is the manufacture of the date(1830) with the obverse die still in use into the following years (1831) production. Moderate signs of even circulation with lovely champagne tone. An interesting variant sure to excite even the most advanced of collectors. NGC AU-50. From the Alex Siegel Collection.<p>Ex: Ira & Larry Goldberg Auction# 70 September 4, 2012, lot# 3850.
