It's not the old aluminum one that says Sparkomatic on the side, obviously.... There were a lot of generic 3 speed floor shifter made over the decades. Hopefully someone will recognize this one, but I wouldn't count on it
I had a Sparkomatic shifter on my Fairlane back in the late 60's, I don't remember what the business end looked like, how about a picture of the entire shifter. Mine had the yoyo type handle, sorta wish I wouldn't have sold it back when.