Book: Bickerton, L. M. 1986 Eighteenth Century English Drinking Glasses: An Illustrated Guide. 431.
• Similarly stemmed ale glass: no. 472, p. 171Book: Volk, Joyce Geary. 2006 The Warner House: A Rich and Colorful History.
• Excavated shards of 18th century English opaque twist, baluster, and knop stems from Warner House, Portsmouth, NH: Fig 7.12, p. 85