Late 19th and early 20th century gear-driven mowers made by the American firm Chadborn & Coldwell who also made the "New Excelsior" machines which had an enclosed gear train. In 1886 a wide range of these American machines were being offered for sale in Gt. Britain. These included 6 inch to 20 inch machines at prices varying between £1.10.0d and £7.10.0d. By 1910 the 14 inch roller mower was retailing at £4.10.0d. Pony mowers were also made. On some imported "Excelsior" mowers the words "London Excelsior" appear on the grass box.