Jaap van Dam (1876-1972). Four drawings: (1) "Zanddijk Rotterdam"

Watercolour and gouache, 32 x 57.5 cm, signed and dated "1900" and titled lower r.

(2) (View of dunes). Watercolour and gouache, 34.5 x 44 cm, signed and dated "1902" with pen lower l. (minimal tear in head margin) - and 2 more similar, signed views of dunes (1x dated 1898). (total 4)