Just thought I'd mention again--regarding Rothenberg--that Caspar Wistar, who imported a lot of rifles n the 1740s and 1750s and sold them mostly to German immigrants, mentioned that "the gunsmith from Rothenberg" was one of his major suppliers. (Rosalind Beiler, Immigrant and Entrepreneur: The Atlantic World of Caspar Wistar, 1650-1750 [Penn State Press, 2008]).