Now showing: Bolivia - Postage stamps (1867 - 2023) - 15 stamps.
9. April WM: None Engraving: Litografias Unidas, La Paz. Perforation: 13½
![[Nationalization of the Mining Industry, type HR]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HR-s.jpg)
![[Nationalization of the Mining Industry, type HR1]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HR1-s.jpg)
9. April WM: None Engraving: La Papelera S.A., La Paz. Perforation: 13½, 13½ x 14, 14
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HS]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HS-s.jpg)
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HS1]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HS1-s.jpg)
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HS2]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HS2-s.jpg)
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HS3]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HS3-s.jpg)
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HS4]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HS4-s.jpg)
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HS5]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HS5-s.jpg)
| No. | Type | D | Color | Description |
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| 526 | HS | 0.50B | purple rose | (2.500.000) | 0.26 | - | 0.26 | - | USD |
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| 527 | HS1 | 1B | rose | (1.500.000) | 0.26 | - | 0.26 | - | USD |
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| 528 | HS2 | 2B | violet blue | (2.000.000) | 0.26 | - | 0.26 | - | USD |
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| 529 | HS3 | 3B | light green | (2.000.000) | 0.26 | - | 0.26 | - | USD |
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| 530 | HS4 | 4B | yellowish orange | (500.000) | 0.26 | - | 0.26 | - | USD |
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| 531 | HS5 | 5B | dark violet | (2.000.000) | 0.26 | - | 0.26 | - | USD |
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| 526‑531 | 1.56 | - | 1.56 | - | USD |
9. April WM: None Engraving: La Papelera S.A., La Paz. Perforation: 13½, 13½ x 14, 14
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HS6]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HS6-s.jpg)
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HU]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HU-s.jpg)
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HS7]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HS7-s.jpg)
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HS8]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HS8-s.jpg)
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HS9]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HS9-s.jpg)
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HU1]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HU1-s.jpg)
![[The 1st Anniversary of the Revolution of April 9th, 1952 - Villarroel, Paz Estenssoro and Siles Zuazo, type HS10]](https://www.stampworld.com/media/catalogue/Bolivia/Postage-stamps/HS10-s.jpg)
| No. | Type | D | Color | Description |
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| 532 | HS6 | 3.70B | chocolate brown | (1.000.000) | 0.78 | - | 0.78 | - | USD |
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| 533 | HU | 6B | reddish violet | (600.000) | 0.26 | - | 0.26 | - | USD |
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| 534 | HS7 | 9B | brownish rose | (1.000.000) | 0.26 | - | 0.26 | - | USD |
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| 535 | HS8 | 10B | blue | (1.500.000) | 0.26 | - | 0.26 | - | USD |
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| 536 | HS9 | 16B | reddish orange | (400.000) | 0.26 | - | 0.26 | - | USD |
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| 537 | HU1 | 22.50B | dark brown | (400.000) | 0.78 | - | 0.78 | - | USD |
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| 538 | HS10 | 40B | grey | (600.000) | 0.52 | - | 0.26 | - | USD |
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| 532‑538 | 3.12 | - | 2.86 | - | USD |
