Caption:
Photograph - Ruston & Hornsby, Crawler-Mounted 'Dragline Excavator', Lincoln, England, 1923, One of 37 monochrome photographs contained in an album depicting steam-operated, crawler-mounted and rail-mounted mechanical shovels and excavators under test outside the Ruston & Hornsby works at Lincoln and working at a variety of locations throughout the United Kingdom. Part of a collection of photographs, motion picture films, product catalogues, company journals, customer registers