Swishy's Wotzit on Winther got me interested. This is a very interesting story.
Of particular interest is a shipment of 500 Winthers to Australia in 1917 as part of a 5,000 incomplete order (due to wartime problems?). This is a serious number of vehicles, I wonder who the importer was.
It was Sterling Motor Company. They must have done OK as here are photos of their 1921 model demos in Sydney. Looks like Winther continued to use his knowledge of 4x4 from his time at Jeffery/Nash to produce a more advanced cross country model.