RUSSIA. 10 Rubles, 1766-CNB. St. Petersburg Mint. Catherine II (the Great). PCGS Genuine--Cleaned, AU Details. Fr-129a; KM-C-79a; Bit-12. Narrow Portrait type. This nice quality example from the first year of issue has only the faintest wisps of circulation on the highest elements of the portraiture. While this example was subjected to a light cleaning some time in the past, the only evidence that attests to it are some small hairlines visible under magnification. Strong details remain, with no effacement present, and traces of luster in the protected areas. This specimen bears a vibrant ruddy hue to the overall golden color, giving it strong eye appeal. Tough to find in any condition, this example surely will be much coveted. From the Mark and Lottie Salton Collection.