Book: McKearin, George S. & McKearin, Helen. 1989 American Glass.
• Two similar models, one attributed to Sandwich: pl. 181, nos. 21, 22, 24Book: Spillman, Jane Shadel. 1981 American and European Pressed Glass in The Corning Museum of Glass.
• Violet-blue and colorless models, attr. to Sandwich, ca. 1829- 1840: nos. 433- 434, p. 136; Reproduction: no. 1374, p. 351; 1920'sBook: Lee, Ruth Webb & Rose, James H. 1948 American Glass Cup Plates. 445.
• Cup plate pattern listed: No. 619, pl. 98, p. 337; Probably Sandwich, plentiful