I found one!!!
Today my DD & I stopped at one of the antique stores in town and there she was. She has been used and abused but I see a beauty in her. She is a Singer treadle, #27-4, #D1283866, and she came with original manual and attachment booklets, and several attachments, plus cabinet. I took oodles of pics before I broke her down (as much as possible some of the screws are frozen), and willl go to town tom. to get a few things Billy recommended to clean her.
They had a $75 price on her and as I walked over to the clerk, she said she was on sale and I could have her for $50. I said sold! I probably could have gotten her a bit cheaper, but there were other women eying her.