This tankard forms part of a small group of peg tankards made by John Plummer of York during the 1650's and 1660's. As Charles Oman comments in English Engraved Silver 1150-1900, London, 1978, p. 66-67, "John Plummer of York was the most important provincial goldsmith of this period and had a taste for original engraving." Bearing in mind most 'peg' tankards on these fruit feet originate in Scadinavia and that the style of engraving is also found on tankards of those counties, it has often been suggested that Plummer employed an engraver from across the North Sea