[Isotype] Willem Sandberg (1887-1984)
6 isotype schoolplates on geography and religion. Paper on cardboard, 1931-1932. Printed by Nijgh & van Ditmar N. V. Rotterdam. (1) Wereldmachten. (2) Menschenrassen op aarde (2 from the series). (3) Godsdiensten op aarde (2 from the series). (4) Bevolkingsdichtheid op aarde. Each 82.5 x 74 cm, with original grommets and strings for hanging.
(total 6)