Other interesting factory tours are those for the German companies Koepfer, VDF and Index, the English Dean, Smith & Grace and Archdale - together with some inside views of Herbert, Wadkin, Colchester and Lang - and from American the superb factory tour of the Hendey works by the renowned industrial photographed Robert Yarnall Richie. A rather different approach was taken by the American Monarch Company who also employed Richie to display some of the manufacturing techniques used in their factory together with the special features of their high-quality lathes ..