For more information, and illustrations, of Australian 0 gauge models, including live steam, please see the book Spring, Spark & Steam by Bruce Macdonald.
Arthur Trimingham (1880-1956) was a meticulous model maker, active in the Sydney Model Railway Society from the late 1930s. He made models of suburban coaches used on the New South Wales system, never producing for the retail market, but selling only to fellow enthusiasts and on commission. The illustration below has been copied from the National Museum Australia web site, which is hosting the Bruce Macdonald model train collection.
Arthur Trimingham New South Wales Railways ‘American’ style end-platform first class car, made with wood and metal, about 1940