Papal States 1689 1/2 grosso KM-481
This type was minted in 1689 as a sede vacante issue after the death of Innocent XI. Three different mezze grossi were struck in 1689, of which this is the only one with a photo in the SCWC. The mezzo grosso was two and a half baiocchi, while the piastra, the Italian equivalent of the German thaler, was 105 baiocchi (3½ testone).
Recorded mintage: unknown.
Specification: 0.75 g, silver, .917 fine.
Catalog reference: Ber-2163, KM-481.
- Berman, Allen G., Papal Coins, South Salem, NY: Attic Books, 1991.
- Cuhaj, George S., and Thomas Michael, Standard Catalog of World Coins, 1601-1700, 6th ed., Iola, WI: Krause Publications, 2014.