The coins were in a bog where 34 Celtic silver coins had previously been found. A bog in Switzerland that just a few years ago revealed 34 Celtic silver coins from 2,100 years ago has now offered up something even more fascinating: two Celtic gold coins from 2,300 years ago. In 2023, 34 Celtic silver coins from roughly 80 B.C.E. Related Story Archaeologists Found 40,000 Ancient Roman CoinsThe stater gold coins were so valuable that they weren’t often traded or used for routine transactions. In March, Barfüsserkirche in Basel will display the two gold coins alongside the previously discovered silver coins in a “Treasure Finds” exhibition.