I found this machine on Craigslist yesterday and search on-line and ask people on this board what model it was. Turns out it's a Singer 15-125. I had been looking for a 15-91 when I spotted this machine. I was told that it is the sister to the 15-91 and is light green instead of black, but basically the same machine. It has the drop feed for FMQ. The original manual & a few attachments came with it. I bought her for $60. Below are pictures.