Article: Davidson, Benjamin & Biddle, Pippa. 05//2023 One Simple Trick: On the Enduring Appeal of Puzzle Jugs. Antiques. 46-48.
• Published: p. 46Book: Grigsby, Leslie B. 2000 The Longridge Collection of English Slipware and Delftware.
• Evidence for "puzzle jug" as period term: vol. 1, no. S91, trailed and sgraffito slipware jug inscribed "The Reveren\D / RicharD:Nelson / GrasDaLe / 1774" and "A / PuslinG / Jug" Probably Yorkshire.Book: Mountford, Arnold R. 1971 The Illustrated Guide to Staffordshire Salt-Glazed Stoneware.
• Scratch-blue examples of similar form: Mountford, Stoneware, fig. 163 (inscribed "GW") and fig. 164 ("IOHN / FORD"), both c. 1750.Book: Edwards, Diana & Hampson, Rodney. 2005 White Salt-glazed Stoneware of the British Isles.
• Excavated salt-glazed puzzle jug fragment: p. 173, fig. 137b, fragment of handle with applied flower, from Dr. Hall Jackson site, Portsmouth NH.Article: Crossley, Robert. 1993 "Circulatory Systerms of Puzzle Jugs". Transactions of the English Ceramic Circle. 15 (Pt. 1): 73-98.
• Detailed discussion of puzzle jugs of many types and materials: p. 81, no. 3a, discussing a salt-glazed example somewhat like 1958.0929 in form.Book: 1984 Principes d'analyse scientifique: Objets civils domestiques Vocabulaire.
• French (Saint-Verain and Rouen) puzzle jugs: p. 190, nos. 973, 975; the Rouen example being tin-glazed and dated 1733.