I bought this exact machine in 1984 from a local sewing machine dealer. Mine is labeled on the front "Universal", but on the bottom it says Standard Sewing Machine Corp., made in Taiwan, and the Model is 4400. I've used it for years without problem and you're right, the motor will power through all kinds of things my electronic sewing machines won't. Sadly, the tension unit has given out on it, and I'm not sure where to even begin looking for a new one. Your post here is the first post I've seen with my exact machine in it.