His rich curls fall on his broad and smooth white collar, which has two tassels.
He wears a dark coat with a black cloak over it, and a large broad-brimmed felt hat.
Mentioned by Bode, Jahrbuch der Koniglichen Preussischen Kunst-Sammlungen, xxix.
[2]Koppel still owned the painting in 1935 when he was forced to divest all of his interests due to the Aryanization of German businesses in Berlin under Hitler.
According to the MET, the painting was consigned to M. Knoedler and Co, New York by Albert L. Koppel, on October 1, 1943.
The painting shows his syphilitic saddle nose, that was featured more prominently in the engraving Hofstede de Groot mentioned: