Victor Adding Machine Co. Chicago, USA

The company was founded in 1918 by Carl Buehler, a businessman who owned a  chain of retail stores. Victor was introduced in 1918. Designer was O.D. Johantgen. It was a full keyboard calculator. In 1921 a calculator equipped for printing was introduced. Between 1918 and 1958 the company produced 1.5 million calculators. In 1961 the company merged with Comptometer Co., a Chicago based company. Production of calculators ceased in late 1970s.