Fontana Arte: Illuminazione, sales catalogue, Milan, 1960s, p. 62 Laura Falconi, Luci e Trasparenze: Fontana Arte, Rome, 2006, pp. 45, 83 Pierre-Emmanuel Martin-Vivier, Max Ingrand: Du Verre à la Lumière, Paris, 2009, p. 202
circa 1960 Partially chiselled and acid-etched glass, brass, painted brass. Each: 19.6 x 19.4 x 8.4 cm (7 3/4 x 7 5/8 x 3 1/4 in.) Manufactured by Fontana Arte, Milan, Italy.