75/3502 Bierman, R. (1921-1972). (Nightview with movable satellites). Drawing, black crayon and black and blue wash, 36,7x50 cm., signed and "'59" in pencil (yellowed). - AND 4 other drawings by the same, all watercolours, all signed, i.a. "Eenrichtingkijkers. Kunstnatuurfiguren Serie B. Groep IQ 50".

= Provenance: the collection G. Hofland.