Home / Typewriters / G.W. Todd & Co. Protectograph, 1915, Model H
Marca: G.W. Todd & Co.
Anno di produzione: 1915
Tipo: Model H
Nazione: USA
Nome: Protectograph
G.W. Todd & Co. Protectograph, Model H, 1915, USA

The Todd Protectograph Co. was established in 1899 by G. W. Todd. 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. Circa 1916, the Protectograph Check Writer devices wrote and protected cheques using two colours (red for amount words, and black for denominations).