09 May (Belgium ) within release Rocket mail goes into circulation Souvenir Sheet Launching of the Rocket - Souvenir Sheet face value None No Face Value
Souvenir Sheet Launching of the Rocket - Souvenir Sheet in catalogues | |
---|---|
Belgium: | Bel: BE E7FND |
Souvenir Sheet is square format.
The engineer Roberti, in collaboration with the postal administration, has launched the first rocket for postal transport in Duinbergen, Heist aan ZeeAlso in the issue Rocket mail:
Souvenir Sheet Launching of the Rocket - Souvenir Sheet it reflects the thematic directions:
A rocket (from Italian: rocchetto, lit. 'bobbin/spool') is a vehicle that uses jet propulsion to accelerate without using any surrounding air. A rocket engine produces thrust by reaction to exhaust expelled at high speed. Rocket engines work entirely from propellant carried within the vehicle; therefore a rocket can fly in the vacuum of space. Rockets work more efficiently in a vacuum and incur a loss of thrust due to the opposing pressure of the atmosphere.
A sea is a large body of salty water. There are particular seas and the sea. The sea commonly refers to the World Ocean, the wider body of seawater. Particular seas are either marginal seas, second-order sections of the oceanic sea (e.g. the Mediterranean Sea), or certain large, nearly landlocked bodies of water.