DELLA TORRE, Enrico (1931-) - Guido BALLO (1914-2010) - Quattro acqueforti originali ed un disegno fuori testo presentati da Guido Ballo. Rome: Galleria la Salita Roma, 1958. Folder with four signed original etchings and one drawing, copy 24 of 30, from a total edition of 41 copies. Folio (496 x 349mm). Four signed, dated and numbered etchings, the artist personally prepared the copper plates, the engravings are preserved in folders with passepartout and tissue guards, the signed drawing is in a folder, there is a signature at the colophon (?), this copy is part of the Opere Grafiche series by Galleria della Salita in Rome, printed on special handmade paper by Fabriano paper mills, presented by Guido Ballo. Original white wrappers printed in black (lightly rubbed). Original grey cardboard box (lightly chipped).