Galapagos Tortoise - overprinted
4.20 S/. 1961
Ecuador
Galapagos Islands Issue with red overpint "ESTACIÓN DE / BIOLOGÍA MARÍTIMA / DE GALAPAGOS/ UNESCO Emblem and 1961".
| Country: | Ecuador |
| Type: | Postage stamps |
| Series: | Marine biology station on the Galapagos Islands |
| Nominal: | 4.20 S/. |
| Year: | 1961 |
| Size: | 40 x 30 mm |
| Perforation: | comb 12 |
| Mintage: | 200,000 |
Marine biology station on the Galapagos Islands
 South American Sea Lion - overprinted |  Galapagos Islands 0.25$ |  Marine Iguana - overprinted |  Galapagos Islands |
 UNESCO emblem and the year of the 1961st 0.25$ |  Galapagos Tortoise - overprinted |