according to Wintherthur, a museum of textile history located in pennsylvania, and also the Newark Museum, which has an extensive quilt collection, the way they make repairs is this:
using netting (tulle) in a neutral shade or as close to the original color as possible, cover any holes. use tiny running stitches to attach the netting to the quilt at a strong place in the original fabric. trim the netting closely being careful not to cut through (duh!) the quilt. where the binding is worn and hanging away, very carefully, with your fingers, lightly push the binding back where it belongs. if it's bias, which it probably is, it may be all stretched out. this gets tricky here. holding the binding in place, in the palm of your non-sewing hand, wrap the netting around the edge and stitch with a small running stitch where the fabric is still good. start before the damage and end after the damage. when you wrap, wrap a little further in than you actually need to. tiny running stitches to match.
for holes and bindings, the netting will be the only thing keeping the fabric together. when you display, be sure that there's no weight on those places. change the folds often. the fabric is already fatigued and direct sun or hanging weight will shorten it's it's life even more. to enjoy it, you can keep it in light (not really good, but that's why you got it) but not direct sun. you'll have it longer.
they're very beautiful and you'll love seeing them all the time for as long as they do last. good buy. how come i never see those around here?