Alexander Graham Bell. 20 Nu — Bhutan, 1978
Alexander Graham Bell. (Bhutan, 1978), face value 20 Nu, “Centenary of the Telephone” series. Photo, catalogue value, details and photo identification.
- Series
- Centenary of the Telephone
- Issue date
- 1978
- Face value
- 20 Nu
- Colors
- Multicolor
- Yvert
- BT 517
- Michel
- BT 722A
- Stanley Gibbons
- BT 378
- Scott
- BT 242