Praegu kuvatakse: Boliivia - postmargid (1950 - 1959) - 10 margid.
9. oktoober WM: mitte ükski Gravüür: La Papelera S.A., La Paz. perforatsioon: 13½
![[Development of Petroleum Industry, Tüüp HZ]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HZ-s.jpg)
![[Development of Petroleum Industry, Tüüp HZ1]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HZ1-s.jpg)
![[Development of Petroleum Industry, Tüüp HZ2]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HZ2-s.jpg)
![[Development of Petroleum Industry, Tüüp HZ3]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HZ3-s.jpg)
![[Development of Petroleum Industry, Tüüp HZ4]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HZ4-s.jpg)
| Nr | Tüüp | D | Värv | Kirjeldus |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 549 | HZ | 10B | ultramariin/helesinine | (2.000.000) | 0,26 | - | 0,26 | - | USD |
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| 550 | HZ1 | 35B | karmiin/kollakas | (2.000.000) | 0,26 | - | 0,26 | - | USD |
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| 551 | HZ2 | 40B | roheline/heleroheline | (1.000.000) | 0,26 | - | 0,26 | - | USD |
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| 552 | HZ3 | 50B | purpur/roosa | (1.000.000) | 0,53 | - | 0,26 | - | USD |
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| 553 | HZ4 | 80B | pruun/pruunikaskollane | (1.000.000) | 0,79 | - | 0,26 | - | USD |
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| 549‑553 | 2,10 | - | 1,30 | - | USD |
9. oktoober WM: mitte ükski Gravüür: Litografias Unidas, La Paz. perforatsioon: 13½
![[Airmail - Development of Petroleum Industry, Tüüp IA]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/IA-s.jpg)
![[Airmail - Development of Petroleum Industry, Tüüp IA1]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/IA1-s.jpg)
![[Airmail - Development of Petroleum Industry, Tüüp IA2]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/IA2-s.jpg)
![[Airmail - Development of Petroleum Industry, Tüüp IA3]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/IA3-s.jpg)
![[Airmail - Development of Petroleum Industry, Tüüp IA4]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/IA4-s.jpg)
| Nr | Tüüp | D | Värv | Kirjeldus |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 554 | IA | 55B | rohekas-sinine/helesinine | (1.671.200) | 0,26 | - | 0,26 | - | USD |
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| 555 | IA1 | 70B | tumehall/sinihall | (1.300.000) | 0,53 | - | 0,26 | - | USD |
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| 556 | IA2 | 90B | tumeroheline/heleroheline | (1.300.000) | 0,79 | - | 0,26 | - | USD |
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| 557 | IA3 | 500B | purpurroosa/mitmevärviline | (250.000) | 3,16 | - | 0,79 | - | USD |
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| 558 | IA4 | 1000B | tumepruun/pruunikaskollane | (80.000) | 5,27 | - | 1,58 | - | USD |
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| 554‑558 | 10,01 | - | 3,15 | - | USD |
