Brother made it for Western Auto. It is a class 15 machine with an oscillating hook. Straight stitch only. Give it a good dusting and oil every place metal touches metal and she'll run like the wind.
Check on both ends of the motor housing for a small hole, they will be near the bulge on the back end of the motor and near the pulley wheel on the front of the motor. If there is one, DON'T put oil in it! It is a grease port. Get a tube of Singer Lube or even some plain vaseline to put in them.