Romania - 273
273
Romania 1957
First Two Soviet Satellites
November 6, 1957
Satellites, Globes, and Label
0.25 + 3.75l multicolored
Satellites, Globes, and Label
0.25 + 3.75l multicolored
Artificial Satellite
Orbiting Globe
25b dk blue green
Artificial Satellite
Orbiting Globe
25b cornflower blue
Satellites' Orbits
Around the Globe
3.75l dk blue green
Satellites' Orbits
Around the Globe
3.75l cornflower blue
Satellites, Globes, and Labels (Tête-bêche)
2 × (0.25 + 3.75)l multicolored
Satellites, Globes, and Labels (Tête-bêche)
2 × (0.25 + 3.75)l multicolored