What a wonderful birthday present! A very interesting machine. It is a Fridor. A slightly wacky design from the late Fourties, produced through the Fifties.
There was a bad connection in the wall plug. Here it is being repaired very professionally. Apart from the plug the feed dog mechanism was disconnected from the feed dog switch. We found that the two screws securing the switch were loose, so the lever disconnected from the rod to the dog mechanism. Not difficult to fix.
Now the machine ran, but for some reason the feed dogs didn't lift up high enough to move the material.
So now we're sewing again!