Stolk, Swip (design). — Stichting Octopus. Board jigsaw puzzle with coloured silkscreen, text printed over the pieces on verso,

30 x 30 cm., printed in Deventer by Drukkerij 'De IJsel" for Stichting Octopus, 1969, designed by Swip Stolk as a board jigsaw puzzle. = Advertorial publication introducing Stichting Octopus as non-profit publisher of avantgarde artists' publications, under supervision of the editors Paul Brand, Wim Crouwel and Hein van Haaren, and initiated together with Frits Becht and Joop Hardy of the printing company 'De IJsel'.