Now showing: Nicaragua - Postage stamps (1970 - 1979) - 3000 stamps.
1. December WM: None Engraving: Lito. Nacional - Porto - Portugal. Perforation: 14
1. December WM: None Engraving: Lito. Nacional - Porto - Portugal. Perforation: 14
1. December WM: None Engraving: Lito. Nacional - Porto - Portugal. Perforation: 14
1. December WM: None Engraving: Lito. Nacional - Porto - Portugal. Perforation: 14
1. December WM: None Engraving: Lito. Nacional - Porto - Portugal. Perforation: 14
1. December WM: None Engraving: Lito. Nacional - Porto - Portugal. Perforation: 14
1. December WM: None Engraving: Lito. Nacional - Porto - Portugal. Perforation: 14
15. May WM: None Engraving: De La Rue. Perforation: 13
15. May WM: None Engraving: De La Rue. Perforation: 13
15. May WM: None Engraving: De La Rue. Perforation: 13
15. May WM: None Engraving: De La Rue. Perforation: 13
| No. | Type | D | Color | Description |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1663 | AIG | 10C | multicoloured | Using fingers to count | - | - | - | - | ||||||
| 1664 | AIH | 15C | multicoloured | Newton's Law of Gravity | - | - | - | - | ||||||
| 1665 | AII | 20C | multicoloured | Einstein's Theory | - | - | - | - | ||||||
| 1666 | AIJ | 1Cord | multicoloured | Tsiolkovsky Rocket Equation | - | - | - | - | ||||||
| 1667 | AIK | 2Cord | multicoloured | Maxwell's Law | - | - | - | - | ||||||
| 1663‑1667 | 32.50 | - | - | - | USD |
15. May WM: None Engraving: De La Rue. Perforation: 13
15. May WM: None Engraving: De La Rue. Perforation: 13
15. May WM: None Engraving: De La Rue. Perforation: 13
15. May WM: None Engraving: De La Rue. Perforation: 13
15. May WM: None Engraving: De La Rue. Perforation: 13
15. May WM: None Engraving: De La Rue. Perforation: 13
15. May WM: None Engraving: De La Rue. Perforation: 13
| No. | Type | D | Color | Description |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1668 | AIL | 25C | multicoloured | Napier's Law, logarithms | - | - | - | - | ||||||
| 1669 | AIM | 30C | multicoloured | Pythagorean theorem | - | - | - | - | ||||||
| 1670 | AIN | 40C | multicoloured | Boltzmann equation | - | - | - | - | ||||||
| 1671 | AIO | 1Cord | multicoloured | de Broglie hypothesis | - | - | - | - | ||||||
| 1672 | AIP | 2Cord | multicoloured | Archimedes’ principle | - | - | - | - | ||||||
| 1668‑1672 | - | - | 10.00 | - | USD |
6. September WM: None Engraving: De La Rue, Colombia. Perforation: 14
6. September WM: None Engraving: De La Rue, Colombia. Perforation: 14
6. September WM: None Engraving: De La Rue, Colombia. Perforation: 14
6. September WM: None Engraving: De La Rue, Colombia. Perforation: 14
15. October WM: None Engraving: Lito Nacional - Porto, Portogallo Perforation: 14
| No. | Type | D | Color | Description |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1681 | AIR | 10C | multicoloured | Psarocolius montezuma | - | - | - | - | ||||||
| 1682 | AIS | 15C | multicoloured | Eumomota superciliosa | - | - | - | - | ||||||
| 1683 | AIT | 20C | multicoloured | Calocitta formosa | - | - | - | - | ||||||
| 1684 | AIU | 25C | multicoloured | Muscivora forficata | - | - | - | - | ||||||
| 1685 | AIV | 30C | multicoloured | Icterus pectoralis | - | - | - | - | ||||||
| 1686 | AIW | 35C | multicoloured | Campylorhynchus rufinucha | - | - | - | - | ||||||
| 1687 | AIX | 40C | multicoloured | Pitangus sulphuratus | - | - | - | - | ||||||
| 1688 | AIY | 75C | multicoloured | Cyanerpes cyaneus | - | - | - | - | ||||||
| 1689 | AIZ | 1Cord | multicoloured | Quiscalus mexicanus | - | - | - | - | ||||||
| 1690 | AJA | 2Cord | multicoloured | Ceryle alcyon | - | - | - | - | ||||||
| 1681‑1690 | 6.50 | - | - | - | EUR |
15. October WM: None Engraving: Lito Nacional - Porto, Portogallo Perforation: 14
| No. | Type | D | Color | Description |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1681 | AIR | 10C | multicoloured | Psarocolius montezuma | - | - | - | - | ||||||
| 1682 | AIS | 15C | multicoloured | Eumomota superciliosa | - | - | - | - | ||||||
| 1683 | AIT | 20C | multicoloured | Calocitta formosa | - | - | - | - | ||||||
| 1684 | AIU | 25C | multicoloured | Muscivora forficata | - | - | - | - | ||||||
| 1685 | AIV | 30C | multicoloured | Icterus pectoralis | - | - | - | - | ||||||
| 1686 | AIW | 35C | multicoloured | Campylorhynchus rufinucha | - | - | - | - | ||||||
| 1687 | AIX | 40C | multicoloured | Pitangus sulphuratus | - | - | - | - | ||||||
| 1688 | AIY | 75C | multicoloured | Cyanerpes cyaneus | - | - | - | - | ||||||
| 1689 | AIZ | 1Cord | multicoloured | Quiscalus mexicanus | - | - | - | - | ||||||
| 1690 | AJA | 2Cord | multicoloured | Ceryle alcyon | - | - | - | - | ||||||
| 1681‑1690 | 2.00 | - | - | - | GBP |
