Papal States 1691 1/2 grosso KM-531

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from the Tom Fitzgerald Collection
Papal States KM-531 rev Tom F.jpg

This type was minted in 1690 as a sede vacante issue after the death of Alexander VII. The SCWC lists two different mezzi grossi for 1690-91, both sede vacante issues but does not provide photos for either of them. 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: 0.67 g, silver, .917 fine.

Catalog reference: KM-531, Ber-2208.


  • 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.

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