RUSSIA. Ruble, 1780-CNB N3. St. Petersburg Mint. Catherine II (the Great). NGC MS-62. Dav-1685; KM-C-67b; Bit-228. This handsome and nicely preserved representative of the type exhibits a bold strike and plenty of luster with a small planchet lamination in front of the bust, displaying light attractive mottled patina thats pleasing to the eye.