Langwill Bros & Davies of Melbourne were agents for imported farm pump engines, windmills and other farm implements.. Because of war shortages, they started building the engines themselves under the Challenge brand in 1916. "..with the exception of the magneto, every part of the engine is manufactured in Australia from Australian raw material." They also sold imported Challenge windmills.This item is associated with the history of agriculture in early Orbost and is a useful research tool.A small light brown covered catalogue which has "Langwill Bros. & Davies Pty Ltd" diagonally across front in black print, items on offer and details of the company. There is a white stamp on the front with red print - "If you're not interested in this; PASS IT ON; Please; It will be doing us a good turn".catalogue farm-machinery langwill-davies