Carole Jeanne wrote:
Recognizing that she doesn't want to have stitches show on back, I would ask if she wants them on the front. If not, I might stretch the backing on a frame, add the layer of batting or a layer of flannel, and the top. If she rejects batting, just use flannel. Stretch the two-three layers , pin, and baste around on the seam line, and see with sewing machine. I still would want the bias binding.
Not using a machine stitched edge invites raveling ESP if machine washing and drying.
if she turns under the edge--and hand sews-=-there is no raveling--I have quilts I made 40 years ago--not a ravel on any of them--I use a machine to piece, but if a whole cloth--the entire quilt is done by hand