Consider the following for general backdrop. 18th and 19th century silversmiths, coppersmiths, blacksmiths, whitesmiths, ironmongers, carriage makers and printers sometimes signed their work and sometimes did not. For instance I have several good copper gooseneck tea kettles that are signed, but two of my best are not. Ditto for scythes, some even signed by gunsmiths, but most unsigned. We revere the gunsmith's work because we see his products as a cultural icon. They were tools of necessity then, perhaps like our cars. Most of us see cars as a necessity for getting from point A to point B. Yes, some even use them to show off their wealth or ostentation, but, for the rest of us, they are a necessary expense and not an object of passion, albiet the presence of lots of car clubs.
Also, it seems rather logical that Sam Dyke and other previous researchers were correct in arguing that during the Revolution, guns were intentionally left unsigned, as the British would have no reservation regarding dispaching a gunsmith whose rifles were bad for their soldiers' health. Incidentally, more than one contemporary rifle has been left unsigned so that the maker couldn't be harassed by the excise tax collectors, so I've been told. Maybe early gunsmiths didn't want ousiders meddling into their business any more than we do. Moreover, in any locality, the inhabitants could likely identify the local gunsmith's work by sheer sight. Name not necessary, and pride a vice to Pennsylvania Dutchmen. Point of note: a majority of guns in some counties, Berks for one, are unsigned. Incidentally, I have yet to see a signed Wolfgang Haga (Hachen), yet lots of enthusiasts speak of Haga-type rifles. As they used to say, "Where's the beef?"