I found this Singer 248 at the Goodwill warehouse (or as I call it "junk by the pound") for $10. I have cleaned it and oiled it----and it works well. I is missing the needle position lever. The bobbin is one of the prewound plastic and I think metal works better for me.....does any one know, if you can use a metal 66----I haven't found a manual yet on the net that doesn't cost... or instructions. I may have the bite the bullet and buy one!