Need help identifying a machine.
I was given a Seamstress A sewing machine which is pretty dirty. Therefore, I'm trying to clean it up but I do not have a book or anything on this machine. It has the shuttle type bobbin. I have removed the motor, light, bobbin winder and covers so the picture may not help but I'm hoping someone can enlighten me. The motor has a plate which says National Sewing Machine Company - Model A and the number 5B 976572A. It list the volts as AC-DC 115 Watts 60.
Sorry for the PDF but I couldn't get the picture to load.
I appreciate any information you can share with me.