More interesting stuff from needlebar referring to the #9, however this lists it having a top leaf tension, while yours has the front like the one in the picture link above - so it must have come both ways.

Whilst the No. 8 was a hand machine, this model was primarily a treadle. It has an automatic rack and pinion bobbin winder and a distinctive top leaf tension and this version uses a conventional bobbin and shuttle.

It seems likely that this machine was known as the Iowa when sold by Sears Roebuck. The American Sewing Machine Company made the Iowa No. 1, No. 2, No. 3 and No. 4.

However, National also made an Iowa No. 1 & No. 3. Davis made a No. 2 and Standard made a No. 4.

hmmm- was looking at your bobbin winder, I'm going to step back and guess that yours is the earlier model with the funny bobbin and shuttle, because you have a winder to handle a "round bobbin" and not a long bobbin.

Ok- I'm suppose to be reviewing the draft audit report before it's finalized, so I'd better quit looking at this very interesting machine LOL!!

This can be easily settled if you show us a picture of the shuttle and bobbin.

My mother wants to sell it, and with her being 82, I am trying to gather info on it so she doesn't get taken advantage of. I have the serial number, it is 171266 if that helps. Thank you guys for any help, I know nothing of sewing machines!

I am going back over to my mother's tomorrow (Sunday) and will pull it out of her garage and take more pics to post.

Sure, I'm going back to my mother's tomorrow and can take any pics you all need!