Series 300 produced by C.A.Ruigrok Industrie 1957-1990's
Designed in collaboration with Jan Ruigrok
Model 305 Photo Jan Versnel
Photo Jan versnel
Model 315. Photo Jan Versnel
Model 309, 1960. Photo Jan Versnel
Various models. From a Druce & co ltd London brochure 1960's
1960 redesign for the model 305.