Olivetti Typewriter Ribbon Spool Black SC-20-OLI

Olivetti Twin spool typewriter ribbon from EBS 1-800-816-6855 for use in Olivetti manual typewriter models 203, 230, 240, 245, 250, 270, 660C, A7, Audit Series, Auditronic 730, Auditronic 770, Editor, 2F, 3F, 4, 5, FS, Graphika, Lettera, 21, 22, 25, 31, 3