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Mikrokosmos (Microcosm) 25€ silver...
Mikrokosmos (Microcosm) 25€ silver & niobium coin.
This beautiful coin is part of the famous "Niobium" series, dedicated to the world's technological journey. In this edition, the Microcosm. The coin has two-tone silver niobium, has incredible details, has beautiful colours.
Mintage: 65,000 pieces worldwide. With box and numbered COA.
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|Face Value :||25 Euros|
|Metal :||Silver .900|
|Weight :||16.50 g|
|Size :||34.00 mm|
|Quality :||Brilliant uncirculated (BU)|
|Mintage :||65,000 pcs. worldwide|
|Certificate of Authenticity :||Yes|
|Original ETUI box/case :||Yes|
|Designer :||Mag. Helmut Andexlinger, Herbert Wähner|
Microcosms are artificial, simplified ecosystems that are used to simulate and predict the behaviour of natural ecosystems under controlled conditions. Open or closed microcosms provide an experimental area for ecologists to study natural ecological processes. Microcosm studies can be very useful to study the effects of disturbance or to determine the ecological role of key species. A Winogradsky column is an example of a microbial microcosm.
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