Watch List notes:

RUSSLAND, Alexander II., 1855-1881, 20 Kopeken 1864, 1867, 1869, 1870, 1871, 1872, 1873, 1874, 1875, 1876, 1878 NF, 1880, 1881 NF, 1884, 1888, 1889, 1890, 1893; 15 Kopeken 1862, 1867, 1869, 1871, 1877 NI, 1878 NF, 1879, 1880, 1884, 1886, 1887, 1889, 1891, 1893; 10 Kopeken 1881 NF, 1889. KM Y.22.2, 22a.1; 21, 21a.2, 20a.2, 35 Stk., s/ss bis ss