The label issue for me has less to do with speculating about value and more to do with historical significance. The label is provenance as is the original box. It is one pleasure to appreciate something old and rare but when accompanied by the commonly associated paraphernalia it is a true delight. Having a pristine Model T is so much better if you have a photograph of the original purchaser, the bill of sale, and the gloves he wore to drive her home. In this regard I can see preserving the label as one would a document which accompanies the stone and box.