RUSSIA. Ruble, 1798-CM MB. St. Petersburg Mint. Paul I. NGC AU-53. Dav-1688; C-101a; Bit-32. The first year in a brief, four-year series, this example exhibits just a light degree of handling and contact marks, all while retaining great originality and subtle brilliance, with a hint of deeper iridescence observed near a portion of the peripheries.