OWD, the document posted is not a hang tag, it is an order card from Savage Arms Company. It has never been outdoors, so it is in pretty good shape, unlike a hang tag. The serial number has been known for a while, was incorrectly identified for a longer while because of an error in an old book. Another point to make is that the barrel legend is not unknown until the gun surfaced. A Nash Buckingham quote in a NB book described the barrel legend. The legend, from the information on the order card, may not have been a factory item, could have been done by Burt outside of the factory, or by a corner gunsmith. Since Nash was a sporting goods dealer and author, Fox may well have built the gun gratis.