This is built on a truck chassis from White vintage 1922 and the huge body built by Smith & Waddington in Camperdown, Sydney, Australia.
But this body type is called a Charabanc, the same name is also used for buses with open bodywork that was common at this time. This White charabanc had room for 15 people and had been ordered by Mr Day. He used it for New South Wales Tourist Bureau excursions and adventures in the wild Australia.
found on http://svammelsurium.blogg.se/2010/october/fyrfaldigt.html