› Invicta Plastics is British company that started releasing dinosaurs and other prehistoric mammals in the 1970s. Originally, they were solid-colored and resembled Marx figures (but were much larger than Marx figures). Later on, they began releasing painted versions. So far, the painted versions are all I have been able to find.

There is a wealth of information at the Realm of Rubber Dinosaurs, should you want to find out more details... http://www.rubberdinosaurs.com/invicta.htm