Topic: Recovered territories

The following Polish postage issues commemorate recovered territories:

(Fischer 309 (Zaolzie in 1938))
Fischer 462-465 (Wrocław exhibition in 1948)
Fischer 798-801 (10th anniversary in 1955)
Fischer 1103-1108 (Western territories Part 1 in 1961)
Fischer 1153-1154 (Western territories Part 2 in 1962)
Fischer 1171-1176 (Northern territories Part 3 in 1962)
Fischer 1434 (20th anniversary in 1965)
Fischer 1858 (25th anniversary in 1970)
Fischer 2822-2824 (40th anniversary in 1995)
Fischer 3387 (50th anniversary in 1995)