"Hercules", 1837, U.S.A. 6 Nu — Bhutan, 1990
"Hercules", 1837, U.S.A. (Bhutan, 1990), face value 6 Nu, “Steam Locomotives” series. Photo, catalogue value, details and photo identification.
- Series
- Steam Locomotives
- Issue date
- 1990
- Face value
- 6 Nu
- Colors
- Multicolor
- Yvert
- BT 957
- Michel
- BT 1224
- Stanley Gibbons
- BT 831
- Scott
- BT 804