Näytetään: Uruguay - Postimaksumerkit (1930 - 1939) - 14 postimerkit.
VM: Ei mitään Kaiverrus: Imprenta Nacional, Montevideo. Perforaatio: 12½
![[Rio Negro Dam, tyyppi IQ]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IQ-s.jpg)
![[Rio Negro Dam, tyyppi IQ1]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IQ1-s.jpg)
![[Rio Negro Dam, tyyppi IQ2]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IQ2-s.jpg)
![[Rio Negro Dam, tyyppi IQ3]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IQ3-s.jpg)
VM: Ei mitään Kaiverrus: Imprenta Nacional, Montevideo. Perforaatio: 12½
![[Airmail - Rio Negro Dam, tyyppi IR]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IR-s.jpg)
![[Airmail - Rio Negro Dam, tyyppi IR1]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IR1-s.jpg)
![[Airmail - Rio Negro Dam, tyyppi IR2]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IR2-s.jpg)
![[Airmail - Rio Negro Dam, tyyppi IR3]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IR3-s.jpg)
![[Airmail - Rio Negro Dam, tyyppi IR4]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IR4-s.jpg)
![[Airmail - Rio Negro Dam, tyyppi IR5]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IR5-s.jpg)
![[Airmail - Rio Negro Dam, tyyppi IR6]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IR6-s.jpg)
![[Airmail - Rio Negro Dam, tyyppi IR7]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IR7-s.jpg)
![[Airmail - Rio Negro Dam, tyyppi IR8]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IR8-s.jpg)
![[Airmail - Rio Negro Dam, tyyppi IR9]](https://www.stampworld.com/media/catalogue/Uruguay/Postage-stamps/IR9-s.jpg)
| No. | Tyyppi | D | Väri | Kuvaus |
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| 573 | IR | 8C | vaalea vihreä | (200.600) | 0,59 | - | 0,59 | - | USD |
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| 574 | IR1 | 20C | vihreä | (50.000) | 0,59 | 5,87 | 3,52 | - | USD |
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| 575 | IR2 | 20C | vihreä | (10.000) | 1,76 | - | 1,17 | - | USD |
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| 576 | IR3 | 62C | vihertävä sininen | (300.000) | 9,39 | - | 7,04 | - | USD |
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| 577 | IR4 | 68C | keltainen | (50.000) | 0,88 | - | 0,29 | - | USD |
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| 578 | IR5 | 68C | violetinruskea | (50.000) | 1,76 | - | 1,17 | - | USD |
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| 579 | IR6 | 75C | violetti | (5.000) | 7,04 | - | 7,04 | - | USD |
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| 580 | IR7 | 1P | karmiini | (50.000) | 2,35 | - | 1,76 | - | USD |
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| 581 | IR8 | 1.38P | ruusunpunainen | (20.000) | 23,48 | - | 17,61 | - | USD |
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| 582 | IR9 | 3P | tumma sininen | (20.000) | 17,61 | - | 11,74 | - | USD |
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| 573‑582 | 65,45 | 5,87 | 51,93 | - | USD |
