drawing, Alexander Hugo Bakker Korff, 1868, Signature front, bottom right: A.H. Bakker Korff '68, watercolor, pencil, paper, Carrier: 18 x 18cm (180 x 180mm), Daylight: 17 x 16.8cm (170 x 168mm), With passe-partout: 42.5 x 30cm (425 x 300mm) , chair,