It’s an interesting machine, but I don’t know what it does. There’s a bobbin winder with it, so it must be a lock-stitch machine. It looks like it feeds something from left to right.
I suspect that the upper rear cover is missing, and a box top has been fitted in its place.
It looks like it has a foot-operated presser bar lifter, and the machine hinges to the left to access the underside.
CD in Oklahoma