Topic: Independence anniversaries

The following Polish postage issues commemorate the recovery of Polish independence:

Fischer 263 (15th anniversary in 1933)
Fischer 323-326 (sheet 7) (20th anniversary in 1938)
Fischer 3010 (70th anniversary in 1988)
Fischer 3014 (70th anniversary in 1988)
Fischer 3019 (70th anniversary in 1988)
Fischer 3021-3028 (70th anniversary in 1988)
Fischer 3029 (70th anniversary in 1988)
Fischer 3033 (70th anniversary in 1988)
Fischer 3035 (70th anniversary in 1988)
Fischer 3083 (70th anniversary of the Versailles Treaty in 1988)
Fischer 3324 (75th anniversary in 1993)
Fischer 3325 (sheet 110) (75th anniversary in 1993)
Fischer 3585 (80th anniversary in 1998)
Fischer 3629 (80th anniversary of the Versailles Treaty in 1999)
Fischer 4250 (90th anniversary in 2008)