GIACOMO BALLA (TORINO 1871 - ROME 1958) "Speed + Landscape; Speed Line + Landscape" 1913-1914 watercolour on paper on cardboard (reverse of the lid of a box of Perugina chocolates) 15x22 cm Signed lower right Provenance Casa Balla, Rome Collection G. Molino, Caresana (1994) Private collection, Milan Exhibitions 'Giacomo Balla' Fonte d'Abisso Arte, Milan, 25 October - 17 December 1994, p. 29, n.14 ill. in catalogue (Speed line + landscape) This work is accompanied by certificate of authenticity on photograph signed by Luce Balla (title written by Elica Balla) This work is accompanied by certificate of authenticity on photograph issued by Elena Gigli, Rome, with n. 2024/1155