16 October (Bulgaria ) within release 30 Years Soviet Space Research goes into circulation Souvenir Sheet No. 3613a+14a face value 100 Bulgarian stotinka
Souvenir Sheet No. 3613a+14a in catalogues | |
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Michel: | Mi:BG BL174I A |
Souvenir Sheet is vertical format.
Bl 174 I has the upper Edge the Inscription ""1957 SPUTNIK 1"" and the lower Edge the Inscription ""1964 VOSTOK 1" the Color of the Edge is blue-violet. It was sold only a small Part of the Edition. An Error in the Inscription was the Reason. The Rest of the Edition was withdrawn and replaced by Bl 174 II."Also in the issue 30 Years Soviet Space Research:
Souvenir Sheet No. 3613a+14a it reflects the thematic directions:
Outer space (or simply space) is the expanse that exists beyond Earth's atmosphere and between celestial bodies. It contains ultra-low levels of particle densities, constituting a near-perfect vacuum of predominantly hydrogen and helium plasma, permeated by electromagnetic radiation, cosmic rays, neutrinos, magnetic fields and dust. The baseline temperature of outer space, as set by the background radiation from the Big Bang, is 2.7 kelvins (−270 °C; −455 °F)
An anniversary is the date on which an event took place or an institution was founded in a previous year, and may also refer to the commemoration or celebration of that event. For example, the first event is the initial occurrence or, if planned, the inaugural of the event. One year later would be the first anniversary of that event. The word was first used for Catholic feasts to commemorate saints. Most countries celebrate national anniversaries, typically called national days. These could be the date of independence of the nation or the adoption of a new constitution or form of government. The important dates in a sitting monarch's reign may also be commemorated, an event often referred to as a "Jubilee".