bronnen
Biser, B.F.,
Elements of Glass and Glass Making (a treatise designed for the glassmaker, comprising facts, figures, recipes, and formulas for the manufacture of glass), Glass and Pottery Publishing Company, Pittsburgh, 1899 (but still in print), blz. 55-59
Newman, H.,
An Illustrated Dictionary of Glass, Thames and Hudson, London, 1977
Eliens, T.M. & Vergeest, A.,
Museum Jan – ontstaan en collectie, Waanders, Zwolle, 2021, blz. 118-131
documenten