Brazil
stamp from se-tenant block of four
| Country: | Brazil |
| Type: | Postage stamps |
| Series: | Water resources |
| Nominal: | 0.31 R$ |
| Year: | 1999 |
| Perforation: | comb 11½ x 12 |
Water resources
 Ecology Station |  Hidrogafy |  Passarela |  River |