kiesh

Hello all!
My mom took me to see my grandma's sewing machine and I know nothing about it! It still has the manual and the sewing machine attachments box. It has these weird knob things that I found out from the manual are different zigzag settings. I had never seen/heard of that! I don't know if it works yet, but my mom said she would pay to get it working if I wanted it to. Granted, I probably won't have it in my possession till I get a place of my own (I graduate college in May!)
It is a Free Westinghouse Model 803 and I can't find anything about it online...All of the pictures that come up don't look like the this one. It has the knee control thing, if any of you know anything I would love to know! Here are pictures. 1 is of the machine in the table, and the other is a close up of the plate on the lower left.