Vietnam
| Country: | Vietnam |
| Type: | Postage stamps |
| Series: | Livestocks - Ducks |
| Nominal: | 100 ₫ |
| Year: | 1990 |
| Size: | 43 x 32 mm |
| Perforation: | comb 13 |
Livestocks - Ducks
 Mallard |  Eurasian Wigeon |  Mallard |  Red-billed Teal |
 Mallard |  Yellow-billed Duck |