International philatelic exhibition Arphila '75 in Paris, France.
(detail of the altar tryptych in St. Mary's church in Kraków, created by Veit Stoss)
Veit Stoß (1438-1533, Polish name: Wit Stwosz) was a German sculptor, born in Nürnberg.
An altar tryptych is a painting or, in this case, a sculpture, made in three parts, so that the side ones can be folded inwards over the middle one.
Kraków is the ancient capital of Poland, residence for centuries of kings, situated north of the Tatra Mountains on the Vistula river.
St. Mary's church
Web gallery of art - Veit Stoss
Image of the high altar tryptych of St. Mary
St. Mary's church (krakow-info.com)
St. Mary stamps (www.marianstamps.com)