Watch List notes:

Russia 1 Rouble 1842 СПБ-АЧ St. Petersburg. Nicholas I (1826-1855). Obverse: Crowned double imperial eagle. Lettering: ЧИСТАГО СЕРЕБРА 4 ЗОЛОТНИКА 21 ДОЛЯ А Ч. Reverse: Denomination; date. Lettering: МОНЕТА РУБЛЬ 1842 С.П.Б. Eagle of 1844. Wreath of 8 links. Silver. Edge inscription. Bitkin 184. NGC MS 64+