Studio BBPR, ‘Rare ceiling light, model no. 2045, with one 3055/25 and five 3055/12 shades’, ca. 1962, Phillips

14 cm (5 1/2 in.) drop, 55 cm (21 5/8 in.) diameter
Manufactured by Arteluce, Milan, Italy. Interior with partial manufacturer's decal with AL/MILANO/ARTELUCE.

Giuliana Gramigna, Repertorio 1950/1980, Milan, 1985, p. 191 for a similar example
Clémence Krzentowski and Didier Krzentowski, eds., The Complete Designers’ Lights II, Paris, 2014, pp. 206-207 for similar examples

About Studio BBPR