RUSSIA. Ruble, 1741-CNB. St. Petersburg Mint. Ivan VI. PCGS Genuine--Environmental Damage, EF Details. Dav-1676; KM-207.2; Bit-27. Despite the noted environmental issues, accounting for the details designation, this specimen nevertheless remains a popular and sought-after type from the "baby Ivan" series. Pleasingly toned and really only lightly handled.