http://www.sewingmachineparts.net/pricelist.html
This guy in Dunlop, Il. has lots of old machine parts if you need some.
Couldn't find the year. The listing only went up to the 158 5-- series and that was mid 60's
She looks like a Esther to me--a real work horse. We had a neighbor when I was growing up named that, she was a nice lady but worked from morning till night.