Similar example illustrated:
G. and C. Larner, The Glasgow Style, Edinburgh, 1979, p. 76, design of musician's lamp illustrated;
T. Howarth, Charles Rennie Mackintosh and the Modern Movement, London, 1977, p. 50, fig. A;
R. Billcliffe, Charles Rennie Mackintosh, The Complete Furniture, Furniture Drawings and Interior Designs, New York, 2009, pp. 78-79.
Charles Rennie Mackintosh. Works from the Collection of Professor Thomas Howarth, Toronto, 1967, Cat. No. 36;
Charles Rennie Mackintosh (1868-1928) Memorial Exhibition, Toronto, 18 November-31 December 1978, p. 111;
Charles Rennie Mackintosh, Architect and Designer from the Collection of Dr. Thomas Howarth, Washington, 1985, Cat. No. 36;
Mackintosh and the Glasgow Style, travelling exhibition in Japan, 15th September 2000 - 18th February 2001, p. 87, Cat. No. 66.