New, unused set of 4 Canon IR-50 ink ribbon cassettes for electronic typewriters!!Model IR-50, Reorder No. 911960, Lot No. 32801. Made in Japan.Cartridges are unused and in the original box. Box has handwritten marker noting "4 cartridges" on the outside, but the ribbons themselves are untouched.Compatible with Canon electronic typewriters that take the IR-50 ribbon cassette.Open to offers and happy to bundle for a discount. Feel free to reach out with any questions!typewriter ribbon, canon typewriter, IR-50, ink cassette, typewriter supplies, vintage office, retro tech, typewriter accessories