Book: McKearin, George S. & McKearin, Helen. 1989 American Glass.
• Discussion of mold-blown bottles at Sandwich: p. 279Book: Barlow, Raymond E. & Kaiser, Joan E. 1993 A Guide To Sandwich Glass: Blown Tableware, Pressed Cup Plates and Salts from Volume 1.
• Similar mold-blown "twisted cruet" (McKearin pattern GI-3, Type 1): no. 1275