Hi qccsnut, Thanks so much for the kind words. The backing of this little quilt is the same as the background. It is pale ecru tone on tone. Doesn't really show up in the pic.
On larger quilts I quite often use unbleached muslin as I get it by the 10 yard bolt and I love the vintage look on my scrappy quilts. The only thing is that it should be pre washed as it can shrink quite a bit.
Be sure and show us yours.