I've taken skins off by sliding a single edge razor blade under the skin. However, that sometimes misses the little edges that might be rolled over a tad on either side of the limb. I've managed to remove the full length of the skins, but not quite the full width. Never felt they were good enough to put back on another bow. On the other hand, if you take some material off the sides of the limbs, there might be enough skin width to do it.
Maybe there's some way to do it with solvents of one sort or another.
Those sure are beautiful skins.