Well, I bought it on craigslist...it was a little rough. Needs power and foot cords and a new belt. It was in a not so nice garage. It needs aq good clean up. I want to order the replacement parts. The number on the front is AG516558. So how do I find out what the model is?

http://www.singerco.com/admin-suppor.../double-letter

Go to this link and look up your number:)

I think this is a better link... http://www.ismacs.net/singer_sewing_...al_number.html

AF516558 is a class 66 made the end of Aug 1945.

Google "vintage singer sewing machine", then click on "images", and see what model your machine matches up with.

thank for all of good info....I have now ordered new a new power cord and belt.....it is really rough..not sure that will fix it...only paid $20.....I at least got a decent cabinet.

Clean it up and oil it good and it should run well. The 66 is a really nice machine. Check out the" Vintage Sewing machine shop" under the Main heading for some great info on vintage machines if you haven't already. Lots of reading and good hints on maintaining and fixing.