Years on Numista page (https://en.numista.com/catalogue/pieces22474.html) are verified as complete and cannot be altered. According to Krause 2012 (1901-2000), 39th ed., p.1089
years are as follows: 1985 (1928), 1985 (1929), 1987 (1931), 1988 (1931), 1988 (1932), 1989 (1932), 1989 (1933), 1990 (1933), 1990 (1934), 1991 (1934), 1991 (1935), 1992 (1935), 1992 (1936) instead of including the duplicate years for 1989 (1932) to 1992 (1935) as currently listed.
Will