I found a lady who has an old manual for Singer 101-3 and 101-11 and she is interested in selling it. It is one manual for both machines. I don't know how much she wants for it. It's are a bit tattered and the pages are loose (don't know if any pages are missing, I've just seen a pic of it.)
Number of the manual is 181-80 and the title says "Singer Electric Sewing Machines 101-3 and 101-11" Then it says with attachments #120315 horizontal rotary hook for family use. It has a pic of the cabinet only. Under the cabinet it says cabinet 40 and then the Singer Mfg. Co.
These model #'s for this manual were made in 1920's.
If anyone is interested in this manual let me know and I'll try to get the 2 of you together via e-mail.