Nicaragua
Muri Bhalissa: Nicaragua - Bolol tal-posta (1862 - 2021) - 1 bolol.
1971
Airmail - Physical Laws and Mathematical Formulas
15. May WM: Xejn Inċiżjoni: De La Rue. Perforazzjoni: 13
Le. | Tip | D | Kulur | Deskrizzjoni | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1668 | AIL | 25C | multi kkulurita | Napier's Law, logarithms | 0.27 | - | 0.27 | - | USD | ||||||||
1669 | AIM | 30C | multi kkulurita | Pythagorean theorem | 0.27 | - | 0.27 | - | USD | ||||||||
1670 | AIN | 40C | multi kkulurita | Boltzmann equation | 0.27 | - | 0.27 | - | USD | ||||||||
1671 | AIO | 1Cord | multi kkulurita | de Broglie hypothesis | 0.81 | - | 0.27 | - | USD | ||||||||
1672 | AIP | 2Cord | multi kkulurita | Archimedes’ principle | 1.07 | - | 0.81 | - | USD |