|The Futura Series debuted around 1974 if I recall. The first was the 900, a flat bed model. Had its fair share of woe's, but worked alright. It was followed by the 920 with a silver stripe in the lid, it
also had its share of woe's, but was easily fixed up. Finally the Gold Leaf Type Lid unit appeared, and of all, it was pretty much problem free out of the box. But that is just my opinion.
The 1411, and 1425 followed along, but they went back to using a Touch & Sew type bobbin case system.
They were built in a Futura style frame, but the internal workings are different than the Futura line.
Then the 935, if I recall, was school release, but did find its way into homes. It used an Apollo bobbin case system.
Also on this page is a parts schematic for a Futura 1000G, even though labeled "Futura", it is the German Electronic model somewhat equal to an Athena 2000,
but does utilized the Touch & Sew bobbin case system. I have never had the pleasure to work on one, nor see it - other than in pictures.