Lucio Fontana (1899 Rosario de Santa Fe - 1968 Comabbio/Varese), 'Piramide' (white), 1967, Cast metal, varnished white. H. 11.3 cm, L. 13.5 cm. Signed at the bottom of one face: L Fontana and inscribed: AP (for Artist's proof) (incised). One copy from a total of 20 artist's proof copies., Cf. Harry Ruhé 2006, p. 156 (with illus.)

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