Bern 1797 1/2 duplone Fr-188
This specimen was lot 30797 in Heritage sale 3037 (New York, January 2015), where it sold for $1,412.35. The catalog description noted, "Bern. Canton gold 1/2 Duplone 1797 MS63 Prooflike NGC. Superb strike with glowing mirrored fields. A superior example of this one-year type." This rare type was struck 1797 while Switzerland was a satellite of the French republic. Single duplones (Fr-187) and double duplones (Fr-186) also exist. A half duplone was worth about a ducat.
Recorded mintage: unknown.
Specification: 3.82 g, .900 fine gold, .110 troy oz AGW.
Catalog reference: KM 162, Fr-188.
- Michael, Thomas, Standard Catalog of World Coins, 1701-1800, 7th ed., Iola, WI: Krause Publications, 2016.
- Friedberg, Arthur L. and Ira S. Friedberg, Gold Coins of the World, From Ancient Times to the Present, 7th ed., Clifton, NJ: Coin and Currency Institute, 2003.
- Bierrenbach, Cristiano, Warren Tucker and Scott Cordry, Heritage Signature Auction 3037, featuring the Empire, the Santa Catarina, the Law and the Santa Maria Collections, Dallas, TX: Heritage Auction Galleries, 2014.