A branding question, more "retro" than vintage
We got a Simplicity 9150 model in the shop today, mostly metal body with what is probably plastic innards, as much as could be gotten away with. It's "new" enough to have a 1-step button hole stitch but not new, by any standards. 13 stitches, no 'puter, not even self-threading. So the question is, who makes (made) Simplicity machines in the 80's-ish. i.e. what big corporate parent actually produced these guys before they were badged off label? Any ideas? Is there any way to see the corporate family tree for these types of things? TIA!