Now showing: Trieste Zone B - Postage stamps (1950 - 1954) - 11 stamps.
1. March WM: None Sheetsize: 50 Design: M. Strenar Perforation: 12½
![[Domestic Animals - New Colors, type O1]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/O1-s.jpg)
![[Domestic Animals - New Colors, type P1]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/P1-s.jpg)
![[Domestic Animals - New Colors, type Q1]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/Q1-s.jpg)
![[Domestic Animals - New Colors, type R1]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/R1-s.jpg)
| No. | Type | D | Color | Description |
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| 48 | O1 | 50Pa | greyish black | Equus asinus | (180000) | 12.67 | - | 4.22 | - | USD |
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| 49 | P1 | 1Din | yellowish brown | Gallus gallus domestica | (475000) | 1.06 | - | 0.53 | - | USD |
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| 50 | Q1 | 2Din | greyish blue | Anser anser domestica | (560000) | 1.06 | - | 0.53 | - | USD |
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| 51 | R1 | 3Din | brownish carmine | Apis mellifera | (585000) | 1.58 | - | 0.53 | - | USD |
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| 48‑51 | 16.37 | - | 5.81 | - | USD |
1. May WM: None Sheetsize: 25 Design: B. Jakac Perforation: 12½
![[International Labor Day, type X]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/X-s.jpg)
![[International Labor Day, type X1]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/X1-s.jpg)
21. October WM: None Sheetsize: 50 Design: R. Krošelj Perforation: 12½
![[The 2nd Congress for Italian Culture in Piran, type Y]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/Y-s.jpg)
![[The 2nd Congress for Italian Culture in Piran, type Y1]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/Y1-s.jpg)
![[The 2nd Congress for Italian Culture in Piran, type Y2]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/Y2-s.jpg)
4. November WM: None Sheetsize: 50 Perforation: 12½
![[The 400th Anniversary of the First Slovenian Printed Book - Yugoslav Postage Stamp Overprinted "STT VUJA", type Z]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/Z-s.jpg)
29. November WM: None Sheetsize: 50 Perforation: 12½
![[The 500th Anniversary of Marko Marulić - Yugoslav Postage Stamp in Changed Color Overprinted "STT VUJA", type AA]](https://www.stampworld.com/media/catalogue/Trieste-Zone-B/Postage-stamps/AA-s.jpg)
