4 Dukater - Oscar I

Oscar I came to the Swedish throne in 1844 after decades as crown prince under his father Karl XIV Johan, the former Napoleonic marshal Jean-Baptiste Bernadotte. The 4-ducat denomination had deep roots in Swedish royal coinage but was never a circulation issue — pieces of this type functioned as presentation gifts and diplomatic currency, distributed by the court rather than spent in trade.

The .976 fineness is the traditional ducat standard, maintained across European courts for centuries specifically to ensure mutual recognition in diplomatic exchange. Fr#88 in Friedberg's gold reference reflects how tightly this piece sits within that pan-European ducat tradition.