Schilderij met voorstelling van man met baard, schouderstuk, en trouis quarts naar rechts. De man Jacobus Cornelis Cossaar zelf.; schilderen (kunst)
Jacobus Cornelis Wijnandus Cossaar (born Amsterdam, August 8, 1874 - died The Hague, November 25, 1966) was a Dutch painter working under the name Ko Cossaar. He was a member of the Pulchri Studio in The Hague.