Austria
Republic bi-metallic silver & niobium "Bionics" 25 Euro 2012 MS70 NGC, Vienna mint, KM3212. Niobium center in silver (.900) ring.
https://coins.ha.com/itm/austria/austria-republic-bi-metallic-silver-and-niobium-bionics-25-euro-2012-ms70-ngc-/a/65175-98062.s?type=DA-DMC-CoinArchives-WorldCoins-65175-03312024
HID02906262019
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