Antique Protectograph Model H by G.W. Todd Company Check Writer Cheque Protector

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A check writer, or ribbon writer, leaves a numerical or written value impression in the payment amount field of a check that is very difficult to alter. This is accomplished by the machine applying downward force on the check and leaving very small inked shreds in the paper.[5]The first check protector was introduced in 1870. The best known check protectors in the early 1900s had the brand name Protectograph (the Todd Company, Rochester, NY). -Wikipedia