Brunswick-Wolfenbuttel 1658 ducat Fr-638
"BRAUNSCHWEIG-WOLFENBÜTTEL, FÜRSTENTUM August der Jüngere, 1635-1666. Dukat 1658, Goslar. GOLD. Gewellt, sehr schön. (Germany, duchy of Brunswick-Wolfenbuttel, August the Younger, 1635-66, ducat of 1658, Goslar mint. Very fine, bent.)"Altho Brunswick-Wolfenbuttel was a prolific issuer of silver coins up to enormous ten thaler pieces, her gold issues are scanty and expensive. This one year type is perhaps the most available of all the gold ducats of the seventeenth century from this locale.
Recorded mintage: unknown but few.
Specification: 3.5 g, .986 fine gold, .110 troy oz AGW; this specimen is 3.41 g.
Catalog reference: KM 457, Fr-638; Welter 765.
- Cuhaj, George S., and Thomas Michael, Standard Catalog of World Coins, 1601-1700, 6th ed., Iola, WI: Krause Publications, 2014.
- 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.
- Künker Münzauktionen und Goldhandel, Catalog 264, Gold coins | Russian Coins and Medals | German Coins after 1871, Osnabrück: Fritz Rudolf Künker GmbH & Co., AG, 2015.