Hi...this is a suggestion off of the top of my head and may require more effort than you really want to expend...but, if you have any idea of the age of this machine, you might try browsing old Sears and Roebuck catalogs My grandmother has a few and they are pretty informative with good line drawings. Otherwise, I would have to suggest looking up antiques in the library catalog. Hope this helps. Those old sewing machines are so neat, my mother has an antique Singer and it is really cool. Have a good one. Tammy