Portrait of a Painter; probably the Artist himself; Portrait of a painter; probably a self-portrait of Willem Uppink. Painting while sitting behind a easel; brush in the right hand; palette; brushes and cane in the left hand. portrait; self-portrait of artist; working situations; painter; Willem Uppink; Willem Uppink (mentioned on object); 1788; oil paint (paint); panel; painting; h 25 cm x w 20 cm d 5 cm