Its just a model name. i Think its actually like NÖST with the umlaut and google translate tells me it means 'next' in swedish. Not sure if thats right?. They had a Nost front too
Also other products like Elba (named after the island of elba in italy), Africa, Baja, rally, Djerba, no actually that one was a UFO light. Back then most of their products had a fancy name thats all.
