NGMark wording
Undated
NG
Seen on objects dated 1684–1689.
gold · silver
Jackson Pickford, Ian, ed. - Jackson's and Gold Marks of England, Scotland and Ireland, Antique Collectors' Club, 1997 lists this mark as " (Nathaniel Greene?)" but this mark not shown by Mitchell Mitchell, David M. - Silversmiths in Elizabethan and Stuart London: their lives and their marks, Boydell Press, 2017