This Pelikan product is the clever alternative to the one of the printer manufacturer. Pelikan products provide and excellent printing quality and yield, at a very attractive price. Pelikan offers 3 years warranty on this product. Pelikan - We make the inks!Compatible Printers: Olivetti Audit 1510, Olivetti Lexicon 80, Olivetti Mercator 5104, Triumph-Adler Contessa 3 DE, Olivetti Audit 1730, Olivetti Lettera 34, Olivetti Lettera 80, Olivetti Lettera 25, Olivetti Lettera 37, Olivetti Studio 44, Olivetti Logos 240 Series, Olivetti Lettera 36 C, Olivetti Audit 730 Series, Olivetti Tropical, Olivetti Audit 723, Adler-Royal 131 D, Olivetti Audit 930, Olivetti Audit 1700 Series, Olivetti Autotronic 770, Olivetti Audit 1723, Olivetti Roma, Olivetti Lettera S 14, Olivetti Audit 1506, Olivetti Audit 1513, Olivetti Logos 25, Olivetti Mercator 5100 Series, Olivetti P 652, Adler-Royal Contessa…