Riobamba Canal-overprinted 20 ¢ — Ecuador, 1950
Riobamba Canal-overprinted (Ecuador, 1950), face value 20 ¢, “Adult education (I)” series. Photo, catalogue value, details and photo identification.
- Series
- Adult education (I)
- Issue date
- 1950
- Face value
- 20 ¢
- Colors
- Grey green | Violet
- Print run
- 30,000
- Yvert
- EC 526
- Michel
- EC 739
- Stanley Gibbons
- EC 916
- Scott
- EC 537