Watch List notes:

RUSSLAND, Alexander II., 1855-1881, 20 Kopeken 1869, 1870, 1871, 1873, 1877 HF, 1878 NF, 1879, 1880. Alexander III., 1881-1894, 20 Kopeken 1882, 1891. Nikolaus II., 1894-1917, 20 Kopeken 1902, 1903, 1904, 1905, 1906, 1907, 1908, 1909, 1910, 1912, 1913, 1914, 1915. UdSSR, 1917-1991. 20 Kopeken 1922, 1923, 1925, 1927, 1928, 1929, 1930. 30 Stk., sge bis vz