细节
EMANUEL THOMAS PETER, signed, circa 1820
A gentleman called Freiherr von Heistermann, wearing a black bonnet, a blue coat over a double-breasted striped yellow waistcoat and a black stock; cloud and sky background; oval -- 82 mm high, silver frame
A gentleman called Freiherr von Heistermann, wearing a black bonnet, a blue coat over a double-breasted striped yellow waistcoat and a black stock; cloud and sky background; oval -- 82 mm high, silver frame