117/200. Edition and signature engraved at the base. F.lli Bonvicini Artistic Foundry, Caselle di Sommacampagna. Total Edition: 200 examples Arabic numerals + C Roman numerals + artist's proofs. The artwork is registered at the Arnaldo Pomodoro Foundation, Milan, Sect. Multiple. Sitography: https://www.arnaldopomodoro.it/catalogue_raisonne/artworks/detail/2057/mag01m0553-piramide-per-banca-nazionale-del-lavoro . Pubblicazione: Sotheby's, Auction catalog, Milan, 23 November 1999, pp. 7, 22, ill. pp. 52, 103, Modern and Contemprary Art. Sotheby's, Auction catalog, Milan, 26 Maj 1998, ill. pp. 16, 30, 79, Modern and Contemporary Art.