Photograph - Ruston & Hornsby; Gears & Pistons; England; circa 1923; Black and white photograph showing Ruston & Hornsby gear system. Part of a collection of photographs; motion picture films; product catalogues; company journals; customer registers and installation drawings relating to the distribution and sale of Ruston & Hornsby industrial equipment in Australia between the years 1905 to early 1980's. Ruston & Hornsby; later known as Ruston