1 Sol

Geneva struck this small billon sol during the final years of cantonal coinage, just before the Federal Coinage Act of 1850 unified Swiss currency and abolished the patchwork of cantonal issues entirely. The transition ended nearly four centuries of Geneva minting its own money. Two die varieties account for the KM#120 and KM#120a distinction — a minor change in the reverse die that has no bearing on rarity but matters to specialists working the series.