Foot on a sewing machine?

I just got my mother-in-laws old sewing machine and noticed it doesn't have a foot on it. I went to local stores looking to purchase a new one but can't find one anywhere. Can I still use the sewing machine if there is no foot for it? I'm working on 2 quilts and need to have them both done soon. I hand stitched the front of both quilts and need to put the batting and back on and figured the sewing machine would be faster. Any help would be appreciated.