Trieste Zone B
1950-1954Visar nu: Trieste Zone B - Postfrimärken (1948 - 1954) - 1 frimärken.
1950
International Labor Day
1. maj WM: Inga storlek på arket: 50 Design: R. Krošelj Perforering: 12½
![[International Labor Day, Typ W]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Trieste-Zone-B/Postage-stamps/W-s.jpg)
![[International Labor Day, Typ W1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Trieste-Zone-B/Postage-stamps/W1-s.jpg)
