USSR
| Country: | USSR |
| Type: | Postage stamps |
| Series: | 1st International Air Mail Conference (Hague, 1927) |
| Nominal: | 15 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)
 Aircraft ANT-3 Over World Map 17$ |  Aircraft ANT-3 Over World Map |