USSR
0.07 - 0.08$
price on 01.03.2023
Species split: Now classified as Grey-headed Swamphen (Porphyrio poliocephalus)
| Country: | USSR |
| Type: | Postage stamps |
| Series: | Soviet Nature Reserves |
| Nominal: | 4 k |
| Year: | 1968 |
| Material: | Chalk surfaced |
| Size: | 42 x 30 mm |
| Perforation: | comb 12½ x 12 |
| Mintage: | 4,000,000 |
Soviet Nature Reserves
