Lot 270. RUSSIAN EMPIRE AND FEDERATION. Nicholas I. 1825-1855.  Polupoltinnik 1827, St. Petersburg Mint, SPB NG. Pattern. 5.10 g. Bitkin 909 (R4). Excessively rare. 100 roubles according to Petrov. 250 roubles according to Ilyin. Brilliant cabinet piece with beautiful patina. NGC MS63. (~€ 520'835/USD 561'800) From the Soedermann Collection, auction SINCONA 12, Zurich, October 2013, lot 533 (price realized: CHF 2,050,000). From auction Adolph Hess AG / Bank Leu & Co. AG 39, Lucerne, November 1968, lot 452. From auction Adolph Hess Nachf. 178, Frankfurt, June 1924, lot 77. Note from the collector Soederman: “Tolstoy (sale) #1017 Reichsmark 1 550". With the expertise by the Society of Friends to the State Historical Museum, signed by I.V. Shiryakov. According to the expertise the coin is "of great interest as numismatic monument".