Book: Montgomery, Charles F. 1973 A History of American Pewter.
• Published: fig. 12-7, p. 195Book: Barons, Richard I. 1982 The Folk Tradition: Early Arts and Crafts of the Susquehannah Valley.
• Published: p. 177.Catalogue: 11/11/2011 The Collection of Lester and Barbara Breininger.
• See lot 301 for a related flask marked by Heyne and inscribed "JOHAN GEORGE WENTZ 1757"Book: Thomas, John Carl. 197 American and British Pewter An Historical Survey.
• Similar object, p. 115.