Book: Godden, Geoffrey A. 1980 Godden's Guide to Mason's China and the Ironstone Wares.
• Guite similar jug "of unusual shape and pattern": p. 189, pl. 238, Mason's Ironstone. Printed crowned name mark, c. 1840-45Book: Godden, Geoffrey A. 1999 Godden's Guide to Ironstone Stone & Granite Wares.
• Mark: p. 99, this general type of mark identified as 1840s.Book: Godden, Geoffrey A. 1999 Godden's Guide to Ironstone Stone & Granite Wares.
• Ashworth factory dinner wares with central reserve perhaps copying Mason's, with American merchant mark for Richard Briggs of Boston. c. 1880-90