Book: Rickard, Jonathan. 2006 Mocha and Related Dipped Wares, 1770-1939.
• Engine-turned surface-agate decorated, engine-turned coffeepot of similar overal shape and spout to Winterthur's. Similar "tipped acorn knop is like those found in the underwater deposit from the brig Washington off the coast of France." British, c. 1785Book: Rickard, Jonathan. 2006 Mocha and Related Dipped Wares, 1770-1939.
• Engine-turned surface-agate decorated wares with similar surface and rouletting: pp. 78-81Article: Rickard, Jonathan & Carpentier, Donald. 2004 "The Little Engine that Could: Adaptation of the Engine-Turning Lathe in the Pottery Industry". Ceramics in America. 78-99.
• Engine-turning, rouletting and history for dipped and other English ceramics: whole article.