16 May (Germany, Democratic Republic ) within release 100 years Carl-Zeiss-Foundation, Jena goes into circulation Stamp Tenant of optical instruments face value 50 East German pfennig
Stamp Tenant of optical instruments in catalogues | |
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Michel: | Mi: DD WZd801 |
Stamp is square format.
Also in the issue 100 years Carl-Zeiss-Foundation, Jena:
Stamp Tenant of optical instruments it reflects the thematic directions:
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".
A microscope (from Ancient Greek μικρός (mikrós) 'small', and σκοπέω (skopéō) 'to look (at); examine, inspect') is a laboratory instrument used to examine objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using a microscope. Microscopic means being invisible to the eye unless aided by a microscope.