Two drawings: (1) A.J. van 't Hoff (1833-1933). (Two vultures)
Watercolour, 32 x 22 cm, signed and dated 1929 in pen in lower right corner, framed with printed label of Frans Buffa & Zonen filkled-out in pen verso (skillful watercolour).
(2) Jan Rijlaarsdam (1911-2007). (Tall building). Sketch in black ink, grey wash, 27 x 18 cm, signed in pen in lower right margin, framed. (total 2)