75/3775 Hartz, L.J. (1869-1935). (Portrait of the artist's daughter, Bé). Drawing, col. crayon, 51x33 cm., signed "Hartz" and "26". Idem. (Portraits of the artist's son, Sem). Drawing, pencil, 22x16 cm. - AND 1 pencil drawing, prob. by the same. - AND 14 etchings by the same, 1x signed "Louis Hartz" and "Gracht te Amsterdam". - ADDED: 7 anonymous landscape sketches in pencil.