Grenada
Viser nå: Grenada - Postfrimerker (1861 - 2021) - 1 frimerker.
1987
Great Scientific Discoveries
9. September VM: Ingen Perforering: 14
![[Great Scientific Discoveries, type AYY]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Grenada/Postage-stamps/AYY-s.jpg)
![[Great Scientific Discoveries, type AYZ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Grenada/Postage-stamps/AYZ-s.jpg)
![[Great Scientific Discoveries, type AZA]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Grenada/Postage-stamps/AZA-s.jpg)
![[Great Scientific Discoveries, type AZB]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Grenada/Postage-stamps/AZB-s.jpg)
| Nr. | Type | D | farge | Beskrivelse |
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| 1713 | AYY | 50C | mangefarget | Isaac Newton holding Apple (Law of Gravity) | 1.09 | - | 1.09 | - | USD |
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| 1714 | AYZ | 1.10$ | mangefarget | John Jacob Berzelius and Symbols of Chemical Elements | 2.18 | - | 2.18 | - | USD |
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| 1715 | AZA | 2$ | mangefarget | Robert Boyle (Law of Pressure and Volume) | 3.26 | - | 3.26 | - | USD |
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| 1716 | AZB | 3$ | mangefarget | James Watt and Drawing of Steam Engine | 4.35 | - | 4.35 | - | USD |
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