USSR
17 - 20$
price on 15.10.2022
| Country: | USSR |
| Type: | Postage stamps |
| Series: | 1st International Air Mail Conference (Hague, 1927) |
| Nominal: | 10 k |
| Year: | 1927 |
| Material: | Chalk surfaced |
| Size: | 43 x 23.5 mm |
| Perforation: | comb 12½ x 12 |
| Mintage: | 200,000 |
1st International Air Mail Conference (Hague, 1927)
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