World gliding championship in Leszno

Fischer 1699-1704 | Michel 1846-1851 | Year of issue 1968 | People's Republic of Poland

1699 Zephyr	1700 Stork

1701 Swallow	1702 Fly

1703 Seal	1704 Pirate

Glossary

Leszno is a town, located roughly between Poznań and Wrocław.
Zephyr refers to the wind, usually the west wind. In ancient Greek mythology, the four winds were personified as gods, called the Anemoi. These included Boreas, Notos, Euros and Zephyros.

Translations

XI Szybowcowe mistrzostwa świata - Leszno 1968 = Eleventh world gliding championship - Leszno 1968.
Zefir = Zephyr.
Bocian = Stork.
Jaskółka = Swallow.
Mucha = Fly.
Foka = Seal.
Pirat = Pirate.

Resources

Gliding
Leszno