GERMAN SCHOOL, CIRCA 1730/40

GERMAN SCHOOL, CIRCA 1730/40 Frederick William I (1688-1740), King of Prussia 1713-1740, 'The Soldier King', in blue coat over a silver breastplate, wearing the orange sash and breast-star of the Royal Prussian Order of the Black Eagle, powdered wig on ivory oval, 1? in. (46 mm.) high, silver-gilt frame