拍品专文
This Arithmometer takes its name from Samuel Tate (1840-1917) who modelled it on the famous invention of Charles Xavier Thomas de Colmar. Tate was granted a British patent in 1885, and that year he instructed Charles and Edward Layton to manufacturer and retailer of the machine. It was shown at the International Inventions Exhibitions held in London in 1885 and enjoyed constant use well into the 20th century.