RUSSIA. 5 Rubles, 1846-CNB AT. St. Petersburg Mint. Nicholas I. NGC AU-58. Fr-155; KM-C-175.1; Bit-27. Type with "eagle of 1845". On the cusp of Mint State status, this original and wholesome example features a golden-olive nature with a good deal of shimmering brilliance evident. From the Sigma Collection.