Napier’s law (logarithms) 25 c — Nicaragua, 1971
Napier’s law (logarithms) (Nicaragua, 1971), face value 25 c, “Mathematics” series. Photo, catalogue value, details and photo identification.
- Series
- Mathematics
- Issue date
- 1971
- Face value
- 25 c
- Colors
- Multicolor
- Yvert
- NI PA715
- Michel
- NI 1618
- Stanley Gibbons
- NI 1768
- Scott
- NI C761