Oooh, love the extra piece of fabric for a border. Perfect for this quilt.I wonder if the one who pieced this intended it to be used on a day bed. They were somewhat popular in that time period and would require more length than width. While I like a patterned fabric for a quilt that will be used as a cover, many quilters of that time period used muslin for backing. If I had to choose, I'd use that accompanying fabric for a border and put muslin on the back. What a wonderful find! My vote--hand quilting and I liked the suggestion to go around the center square and then outline the block itself.