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2023 Austria €25 Silver & Niobium BU Coin "Global Heating"

RSM Price: $82.95
7 available
Item Number: AT23NIOB
  • Mint: Austrian Mint
  • Denomination: €25
  • Quality: BU
  • Issue limit: 65,000 pcs.
  • Alloy: Silver ring, Niobium core
  • Diameter: 34 mm
  • Weight: 7.15 grams
  • Artist: Helmut Andexlinger, Herbert Wähner
  • Box/Capsule: Yes/Yes
  • Certificate: Yes
 

Additional Information

Please click here for an external web page in English!

Since 2003, the Austrian Mint has been issuing coins with niobium cores, dedicated to topics related to science and research. The color of the coin is not applied, it is created by precisely controlled oxidation generating oxide layers a few nanometers thick on the surface. This technique is called “anodic oxidation”.

Depicted inside the blue and gold niobium core of the coin’s obverse, a thermometer forms part of a clock that symbolises that time is running out. To its left is a globe on which it says +1.5°C.

A globe also features in the centre of the coin’s reverse, which deals with the economic, ecological and social aspects of sustainability. To the right are the silhouettes of two human faces, in front of them a sea turtle is seen swimming. Due to environmental pollution and global warming, this species is threatened with extinction.

Comes in a case complete with a numbered certificate of authenticity and protective slipcase.

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