RUSSIA / POLAND. Nicholas I, 1825-55. Gold 3 Rouble / 20 Zlotych, 1837 SPB. NGC AU58. 3.89 g. Mintage: 30,072. KM C# 136.2. Darker golden toning to some areas. A nice example of this scarce type. In a protective plastic holder and graded NGC AU58. Certification number 3928919-001