Robert PlanckneyMaker name
Undated
gold · silver
Seen on objects dated c1580.
gold · silver
Attribution by Jackson Pickford, Ian, ed. - Jackson's and Gold Marks of England, Scotland and Ireland, Antique Collectors' Club, 1997 . Mark not shown by by Mitchell Mitchell, David M. - Silversmiths in Elizabethan and Stuart London: their lives and their marks, Boydell Press, 2017