Teraz pokazywane: Urugwaj - Znaczki pocztowe (1930 - 1939) - 14 znaczki.
WM: Żadne Grawerowanie: Imprenta Nacional, Montevideo. Perforacja: 12½
![[Rio Negro Dam, typ IQ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IQ-s.jpg)
![[Rio Negro Dam, typ IQ1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IQ1-s.jpg)
![[Rio Negro Dam, typ IQ2]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IQ2-s.jpg)
![[Rio Negro Dam, typ IQ3]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IQ3-s.jpg)
WM: Żadne Grawerowanie: Imprenta Nacional, Montevideo. Perforacja: 12½
![[Airmail - Rio Negro Dam, typ IR]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IR-s.jpg)
![[Airmail - Rio Negro Dam, typ IR1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IR1-s.jpg)
![[Airmail - Rio Negro Dam, typ IR2]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IR2-s.jpg)
![[Airmail - Rio Negro Dam, typ IR3]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IR3-s.jpg)
![[Airmail - Rio Negro Dam, typ IR4]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IR4-s.jpg)
![[Airmail - Rio Negro Dam, typ IR5]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IR5-s.jpg)
![[Airmail - Rio Negro Dam, typ IR6]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IR6-s.jpg)
![[Airmail - Rio Negro Dam, typ IR7]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IR7-s.jpg)
![[Airmail - Rio Negro Dam, typ IR8]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IR8-s.jpg)
![[Airmail - Rio Negro Dam, typ IR9]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Uruguay/Postage-stamps/IR9-s.jpg)
| Nr | Typ | D | Kolor | Opis |
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| 573 | IR | 8C | jasnozielony | (200.600) | 0,54 | - | 0,54 | - | USD |
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| 574 | IR1 | 20C | zielony | (50.000) | 0,54 | 5,40 | 3,24 | - | USD |
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| 575 | IR2 | 20C | zielony | (10.000) | 1,62 | - | 1,08 | - | USD |
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| 576 | IR3 | 62C | zielonkawy niebieski | (300.000) | 8,65 | - | 6,49 | - | USD |
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| 577 | IR4 | 68C | żółty | (50.000) | 0,81 | - | 0,27 | - | USD |
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| 578 | IR5 | 68C | fioletowy brąz | (50.000) | 1,62 | - | 1,08 | - | USD |
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| 579 | IR6 | 75C | fiolet | (5.000) | 6,49 | - | 6,49 | - | USD |
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| 580 | IR7 | 1P | karminowy | (50.000) | 2,16 | - | 1,62 | - | USD |
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| 581 | IR8 | 1.38P | różany | (20.000) | 21,62 | - | 16,22 | - | USD |
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| 582 | IR9 | 3P | ciemny niebieski | (20.000) | 16,22 | - | 10,81 | - | USD |
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| 573‑582 | 60,27 | 5,40 | 47,84 | - | USD |
