The Oksana Bennett Collection of Russian Coins | Nicholas I Pavlovich (1825-1855), 25-Kopeks, 1828-CNB, St. Petersburg, Nicholai Grachev, crowned double-headed eagle, wings down, rev. crowned value in wreath, incuse edge graining, 5.06g, 12h (Sev. 2917; Uzd. 1520; Diakov 341; Bitkin 126), light tone overlying brilliant fields, choice mint state