Viser nu Trieste Zone B - Post frimærker (1948 - 1954) - 5 frimærker.
1. maj VM: Ingen Arkstørrelse: 30 Perforeringer: 10½ x 11½
![[International Labor Day, type A]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/A-s.jpg)
![[International Labor Day, type A1]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/A1-s.jpg)
![[International Labor Day, type A2]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/A2-s.jpg)
17. oktober VM: Ingen Perforeringer: 12½ x 11½
![[Airmail - International Trade Fair, type B]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/B-s.jpg)
![[Airmail - International Trade Fair, type B1]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/B1-s.jpg)
Viser nu Trieste Zone B - Post frimærker (1948 - 1954) - 5 frimærker.
1. maj VM: Ingen Arkstørrelse: 30 Perforeringer: 10½ x 11½
17. oktober VM: Ingen Perforeringer: 12½ x 11½