USSR
Horizontal raster.
Paper 0.07 mm.
Paper 0.07 mm.
| Country: | USSR |
| Type: | Postage stamps |
| Series: | All-Union Agricultural Exhibition, Moscow |
| Nominal: | 50 k |
| Year: | 1939 |
| Material: | ordinary |
| Size: | 26 x 37 mm |
| Perforation: | line 12½ |
| Mintage: | 2,000,000 |
