I finally asked for and am getting my late mother's 15-91. I can promise you that it's never had the feed dogs down. It's a very lightly used machine. I really need to rearrange some more stuff before I have a place to put it (other than the garage). I'm really looking forward to it. It will be like an old friend. It's the machine I learned to sew on. I made most all my clothes in high school on that machine (as well as all my doll clothes when I was 8).
Thanks, Linda
bkay