Engraving of a medal of Frederick William, Elector of Brandenburg and Sophia Dorothea of Schleswig-Holstein-Sonderburg-Glücksburg. Obverse; a portrait of the Elector, half length in profile with armour and mantle, and with a portrait of Sophia Dorothea on the reverse. With printed text on the verso. A plate from Georg Daniel Seyler's Leben und Thaten Friedrich Wilhelms des Großen Churfürsten zu Brandenburg (1730).