Nevin, Nefin, or Newin, in North Wales. It is seated on the shore fo [sic] the Irish Sea, opposite Pulhelly, and is a very poor town. It has a small market; and three fairs, on April 4, Saturday before Whitsuntide, and August 25. It is twenty-two miles south-west of Caernarvon, and 250 north-west of London.
Source: The Universal British Directory of Trade, Commerce, and Manufacture 1791. Vol. 5.