Discovered by FATB

SINCONA

Numismatic auction house in Zürich, Zurich, Switzerland

A Zurich auction house for coins, medals, banknotes and related collectibles, holding international auctions twice a year, with expertise from ancient coins to modern pieces and precious-metal valuation.

Why FATB discovered it: Member of the International Association of Professional Numismatists (IAPN), member since 2014 - International Association of Professional Numismatists

Discovery is not verification.