Nicaragua
Montre maintenant: Nicaragua - Timbres-Poste (1862 - 2021) - 1 Timbres-poste.
1971
Physical Laws and Mathematical Formulas
15. mai WM: Aucun Gravure: De La Rue. Perforation: 13
![[Physical Laws and Mathematical Formulas, type AIG]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Nicaragua/Postage-stamps/AIG-s.jpg)
![[Physical Laws and Mathematical Formulas, type AIH]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Nicaragua/Postage-stamps/AIH-s.jpg)
![[Physical Laws and Mathematical Formulas, type AII]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Nicaragua/Postage-stamps/AII-s.jpg)
![[Physical Laws and Mathematical Formulas, type AIJ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Nicaragua/Postage-stamps/AIJ-s.jpg)
![[Physical Laws and Mathematical Formulas, type AIK]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Nicaragua/Postage-stamps/AIK-s.jpg)
| No. | Genre | D | Couleur | Description |
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| 1663 | AIG | 10C | multicouleurs | Using fingers to count | 0,27 | - | 0,27 | - | USD |
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| 1664 | AIH | 15C | multicouleurs | Newton's Law of Gravity | 0,27 | - | 0,27 | - | USD |
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| 1665 | AII | 20C | multicouleurs | Einstein's Theory | 0,27 | - | 0,27 | - | USD |
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| 1666 | AIJ | 1Cord | multicouleurs | Tsiolkovsky Rocket Equation | 0,82 | - | 0,54 | - | USD |
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| 1667 | AIK | 2Cord | multicouleurs | Maxwell's Law | 1,63 | - | 1,09 | - | USD |
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