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The Monroe P51 Adding Machine Calculator Ribbon Cartridge is a replacement ribbon cartridge for various adding machine models. Cartridge makes for easier replacement than spool ribbons. Black/Red ribbon. Pack of three.
Please note, if this is the ONLY item you are ordering, your best shipping rate will be generated by choosing "Priority Mail" on checkout.
Fits the following Monroe machines:
*Please note: Not compatible with Monroe 7150 calculators manufactured before 2006. For this model, please use our Universal Ribbon Spools.
Also compatible with the following machines by these popular manufacturers:
- 1500 Series
- 1530 Series
- 1560 Series
- 1570 Series