By 1916, the company was known as the Todd Protectograph Co. and They made hand-operated mechanical check protectors. The devices were meant to prevent unauthorized alteration of business cheques, using an impression made by the machine that was difficult to alter.

In 1910, the company claimed that 85,000 Protectographs were in use. A 1913 ad stated "For fourteen years the Protectograph system has safeguarded the biggest bank accounts in the world," but the earliest ad we have found was 1902.

2015年4月27日 · Their purpose: to invent a machine capable of thwarting check fraud, a crime that resulted in millions of dollars of bank losses annually during the late 19th century. The brothers succeeded...

The best known check protectors in the early 1900s had the brand name Protectograph (the Todd Company, Rochester, NY). [ citation needed ] Other well known manufacturers in the industry were F & E Hedman and the Paymaster Company (both out of Chicago, IL).

The Todd Protectograph Co. was established in 1899 by G. W. Todd. Circa 1902, the company was known as "G. W. Todd & Co." and was at 6 Exchange St., Rochester, New York. By 1916, the company was known as the Todd Protectograph Co. and They made hand-operated mechanical check protectors.

Antique Protectograph Check Writing Machine - The Todd Company Inc. - Early 1900s Early 1910s, 1920s check writing machine. Made by The Todd Company Inc. Patent Date 1915.

The Todd Protectograph became the world’s standard of protection for checks and documents; an advertisement from 1915 claims over 375,000 in use. The company is first listed on East Avenue, eventually setting up headquarters on University Avenue in 1909.

Protectograph (1896 model), Baby Defiance, New Printamount, Dimunette: 1915 check with macerated words in black and red ink. We have seen similar protection on checks dated 1914-24. In 1913, the manufacturer stated: "The Protectograph Check-Writer writes the amount in words--in two separate colors....

G.W. Todd & Co. "Protectograph". Device for printing cash amounts on cheques in words. Operated with a handle. Made in America, circa 1916. A cheque is rolled through the machine by placing it on the side platform and then turning the handle. Words to be printed are selected by index pointer; units are pounds, shilling and pence.

This check writing machine manufactured by the G. W. Todd Company of Rochester, N.Y., served to emboss and ink a number value in the payment field on a check, so as to make it difficult to alter.