Channel Isles: a late 18th century "Guernsey cup" of campana form with beaded

Channel Isles: a late 18th century "Guernsey cup" of campana form with beaded, s-scroll handles, initialled "C.N.T", by Jean Pierre du Port, maker's mark struck twice (over London marks - the leopard's head and the date letter for 1779 still visible), 2.3in (5.8cm) high, 2.5oz.