Abraham Helmhack (1654-1724) was an accomplished engraver and decorator in enamels who worked on glass and tin-glazed earthenware in Nuremberg in the last quarter of the 17th century and early part of the 18th century. For a detailed discussion of his work and illustrations of two Frankfurt fayence jugs decorated in a very similar manner to the present lot, see Helmut Bosch, Die Nürnberger hausmaler, Munich, 1984, pp. 258-259, nos.188 and 189, and pp. 511-517 for a biography, including a self-portrait engraving and illustrations of engraved folio pages (pp. 512-513) with scrolling foliage that is closely related in style to that on the present lot.