Yes, it is a Japanese sewing zigzag machine. There is a good possibility that your machine will have a JA16 or JC2 on the underside. It is similar to a machine I have called "Miracle," however mine can use cams for more fancy stitches. There is a manual for the ones with cams at
https://res.cloudinary.com/singer-se...hite-231-x.pdf There is another for one that does not have cams at
https://www.manualslib.com/manual/11...ag.html#manual which has a knob for the zigzag rather than the levers to lock the zigzag.
I can't tell for sure, but I believe your machine may take low shank presser feet. It probably is a left homing machine. A left homing machine is one that when the machine is set for straight stitches the needle goes down on the left side of the presser foot and the left side of the needle plate hole.
Janey - Neat people never make the exciting discoveries I do.
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