Romuald Traugutt (1826-1864) was a freedom fighter in the January uprising of 1863.
Tadeusz Kościuszko (1746-1817) was a freedom fighter and warrant-officer in George Washington's army in the American War of Independence.
Jan Henryk Dąbrowski (1755-1818) was a Polish general. He created the Polish legion. A lasting reminder of his legion is Dąbrowski's Mazurka, which later became the national anthem ("Poland has not perished yet").
In Poland, this series of stamps is known as 'Wodzowie'.
Fischer 347 (Romuald Traugutt overprint)
Fischer 361 (Tadeusz Kościuszko overprint)
Find other Polish stamps depicting Tadeusz Kościuszko
American War of Independence
Jan Henryk Dąbrowski
Fischer 339-341 cancelled in Zamość
Proof - black
Souvenir sheet issued in 1964
In 1978, Fischer 339-341 were reprinted with a text on the reverse side:
Reverse side example
Miniature sheet Fischer 339
Miniature sheet Fischer 340
Miniature sheet Fischer 341