Four stamps decorate this envelope.
In the upper right corner we have a stamp (2.20 Zl.) dedicated to Frédéric Chopin (1810 - 1849), great Polish composer and pianist. His compositions (mazurkas, valses, night, preludes, sonatas, ballads, barcarolas, etc.) are tender and romantic, passionate and sometimes melancolic.
A composer and pianist of exception.
Thank you very much, Kazimierz!