Book: Palmer, Arlene. 1993 Glass in Early America: Selections from the Henry Francis du Pont Winterthur Museum. 425 pp.
• Published: no. 40, pp. 90-91 and PL. 16, p. 49, Bohemia or southern Germany.Book: Drahotova, Olga. 1983 European Glass.
• Similar shape white glass mug with gilt rim and "AFRICA" figure (black figure on elephant), painted in somewhat similar style to Winterthur mug: pp. 152-4, no. 108, Harrach factory, Neuwelt, Bohemia, c. 1770Book: Petrova, Sylva & Olivie, Jean-Luc. 1989 Bohemian Glass 1400-1989.
• Probably the same "Milchglass" mug as above: p. 51, c. 1770, Probably the Harrach Glassworks in Novy Svet