American Perforator 400 PAID and DATE The American Perforator 400 Paid Date security perforator makes a great companion for bookkeepers, office assistants and more. It is most commonly used for canceling invoices but can be used to authenticate any office document or billing report, even checks. The PAID imprint leaves a legible, obvious mark for accounting purposes while the dater places the M D Y month, day, and year in one punch.

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