The Twenty-five Francs denomination of the Swiss Franc was used for the first time in 2022 to issue a non-circulating platinum coin. Given that Switzerland has four official languages, the Franc has three different names: Franken in German, franc in French and Romansh, and franco in Italian.
These coins are non-circulating legal tender made for collectors.
This coin is the first platinum coin issued by Switzerland, and it celebrates the metal of platinum itself.
Platinum is a chemical element with the symbol Pt, the atomic number 78 in the periodic table and an atomic weight of 195,084 u. It has a high density and is significantly harder than gold. The precious metal is very resistant to corrosion and has a melting point of approximately 1,800 °C. Platinum was probably first used in Ancient Egypt in around 3000 BC. Today, platinum is used in a variety of areas, including automotive catalytic converters, jewellery, coins, laboratory and analytical equipment, medical implants, pacemakers and cancer therapy. The main sources of raw materials are South Africa, Russia, Canada and the US. |
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The reverse design features a modern illustration of platinum as a raw material. It depicts the element symbol Pt representing the metal platinum in the middle of a cogwheel, among other things. To the left of it is a column of numbers, which add up to 78: 2, 8, 18, 32, 17, 1 - representing the shell structure (electrons per energy level) of the element platinum.
The number 195.084 below the symbolic element platinum corresponds to the atomic mass. In the lower third of the design, the word PLATINUM.
The signature of the designer is below right: in inverse R and M within a circle, for Remo Mascherini. |
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