Thanks Rotary Queen.
I checked where you thought the wire may have come out of the box, but that is simply a bit of the same paper as the box liner nicely wrapped around the base where the wire meets the box. Intact. The prongs were just bent, so straitened them out, plugged it into a power bar just in case.
It runs! Oh my, what a beautiful sound and lovely stitch.
Now to find a 1/4 foot which I'm sure exists.