Designed in 1972, according to Museum für Gestaltung Zürich, Reichardt, Naylor.
A second variation with finer hairlines was not released by Letraset.
Contributed by Stephen Coles
Contributed by Quentin Schmerber
Photo(s) by “spike spondike” on Flickr.
Contributed by Florian Hardwig
Photo(s) by Florian Hardwig on Flickr.