Canon – CORRECTABLE TYPEWRITER RIBBONS (3) – AP-RB20 – AP800 – NOS – SEALED
This is a lot of three (3) correctable typewriter ribbon cassettes. Two are genuine Canon AP-RB21 cassettes in original shrink-wrap. The other is a compatible boxed aftermarket ribbon cassette (see scan). These correctable ribbon cassettes are designed for use in the Canon AP800 series of programmable typewriters (see reference scan).