The ruler was used in a farm in Natimuk. The decorated side served as advertising for the McKay harvesting machines used in large farms in La Pampa, a fertile agricultural land in Argentina. In Australian Dictionary of Biography: "'Sunshine' harvesters were dispatched to South Africa, and in 1901 Sam and three Ballarat experts went to the Argentine where they demonstrated 'La Australiana' on a variety of crops so effectively that they soon threatened the trade in North American reaper-binders and headers."Foldable foot ruler: on one side (light yellow) is the ruler and the other side (light blue) are some inscriptions about H.V. Mckay and a farm (estancia) in Argentina, opposite is a reproduction of a photograph of harvesters taken in the fields of this estancia.On one fold: H. V. McKay's "Sunshine" harvesters harvest the grain on the largest wheat farms in the world. The estancia of the Company Rural Bremen (Sociedad Anonima), Cochico, Guamini, Argentina, South America. Opposite fold: Total area: 108.000 acres Fifty Sunshine harvesters, 6 ft. comb. were purchased (the photograph was taken at the termination of the work).hugh victor mckay, sunshine harvesters, agriculture, farming, argentina, la pampa, la australiana, natimuk