Here is a blog that is really helpful in learning about your vintage machines:
http://vssmb.blogspot.com/ (Vintage Singer Sewing Machine blogspot.com)
He just started it this past summer but his pictures and instructions are wonderful.
Have you seen the wonderful tutorials and vintage sewing machine section of this forum, yet? You will learn so-o-o much by reading the posts. To find the Vintage Sewing Machine section just go to the Main Page and scroll down close to the bottom and you should find it down there. Be very careful, though, there are a bunch of enablers that hang out there :lol: Pretty soon you will be finding and bringing home a bunch of orphaned vintage sewing machines!!