Dabar rodoma: Bolivija - Pašto Ženklai (1950 - 1959) - 10 ženklai.
9. spalis WM: Niekas Graviravimas: La Papelera S.A., La Paz. Perforacija: 13½
![[Development of Petroleum Industry, tipas HZ]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HZ-s.jpg)
![[Development of Petroleum Industry, tipas HZ1]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HZ1-s.jpg)
![[Development of Petroleum Industry, tipas HZ2]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HZ2-s.jpg)
![[Development of Petroleum Industry, tipas HZ3]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HZ3-s.jpg)
![[Development of Petroleum Industry, tipas HZ4]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HZ4-s.jpg)
| Nr. | Tipas | D | Spalva | Apibūdinimas |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 549 | HZ | 10B | ultramarino/lengvai mėlyna | (2.000.000) | 0,29 | - | 0,29 | - | USD |
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| 550 | HZ1 | 35B | karmino/gelsva | (2.000.000) | 0,29 | - | 0,29 | - | USD |
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| 551 | HZ2 | 40B | žalia/šviesiai žalia | (1.000.000) | 0,29 | - | 0,29 | - | USD |
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| 552 | HZ3 | 50B | purpurinė/rožių | (1.000.000) | 0,58 | - | 0,29 | - | USD |
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| 553 | HZ4 | 80B | ruda/rusvai geltona | (1.000.000) | 0,87 | - | 0,29 | - | USD |
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| 549‑553 | 2,32 | - | 1,45 | - | USD |
9. spalis WM: Niekas Graviravimas: Litografias Unidas, La Paz. Perforacija: 13½
![[Airmail - Development of Petroleum Industry, tipas IA]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/IA-s.jpg)
![[Airmail - Development of Petroleum Industry, tipas IA1]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/IA1-s.jpg)
![[Airmail - Development of Petroleum Industry, tipas IA2]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/IA2-s.jpg)
![[Airmail - Development of Petroleum Industry, tipas IA3]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/IA3-s.jpg)
![[Airmail - Development of Petroleum Industry, tipas IA4]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/IA4-s.jpg)
| Nr. | Tipas | D | Spalva | Apibūdinimas |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 554 | IA | 55B | žalsvai mėlyna/lengvai mėlyna | (1.671.200) | 0,29 | - | 0,29 | - | USD |
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| 555 | IA1 | 70B | tamsiai pilka/melsvai pilka | (1.300.000) | 0,58 | - | 0,29 | - | USD |
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| 556 | IA2 | 90B | tamsiai žalia/šviesiai žalia | (1.300.000) | 0,87 | - | 0,29 | - | USD |
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| 557 | IA3 | 500B | purpurinė rožių/daugiaspalvė | (250.000) | 3,48 | - | 0,87 | - | USD |
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| 558 | IA4 | 1000B | tamsiai ruda/rusvai geltona | (80.000) | 5,80 | - | 1,74 | - | USD |
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| 554‑558 | 11,02 | - | 3,48 | - | USD |
