77/4611 Sirks, J. (1885-1938). (Bow of a moored sailing ship in the harbour). Etching, 47,7x30,7 cm., signed "Jan Sirks november 1913" and "30 exemplaren" in pencil, monogrammed and "13" in the plate (Knops 029). Idem. Laurenstoren Rotterdam. Etching, 46,3x28,3 cm., signed "Jan Sirks" and titled "Grote Kerk Rotterdam" in pencil (Knops 118). - AND 10 others by the same, i.a. a view of a farm (1912, Knops 008), "Prins Hendrikkade Amsterdam" (not in Knops), Rotterdam (Aelbrechtskolk met twee tjalken) (1918, Knops 087); Dordrecht ("Nieuwe haven") (Knops 141) and Reeuwijk (Knops 066).