KOOL, Sipke (1836-1902). (Woman on chair). 1863. Drawing in colour. 185 x 110 mm. Signed and dated in pencil. Framed, glazed & under passepartout. -- H.W. KOEKKOEK (1867-1929). (Drummer from the Austrian army in marching outfit). (N.d.). Drawing in colour. 160 x 100 mm. Signed in pencil. Framed, glazed & under passepartout. (A bit browned). -- J. LUTGENS. (Gezicht op Raamvest met Nieuwe Kerk, Haarlem). 1893. Drawing. 135 x 100 mm. Signed. Framed, glazed & under passepartout. (A bit browned). -- And 4 o. (7).