Luxembourg
Republic gold "Coronation" Medallic 20 Francs 1964-(b) MS65 NGC, Brussels mint, KM-XM4c.
https://coins.ha.com/itm/luxembourg/luxembourg-republic-gold-coronation-medallic-20-francs-1964-b-ms65-ngc-/a/65162-98266.s?type=DA-DMC-CoinArchives-WorldCoins-65162-02262023
HID02906262019
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