This series consists of prints of photographs taken by Professor Hills  between mid-February and 5 April 1943 to provide physical information for the construction of the scale model of Australia required by the Army during World War II. (CRS B294). Professor Hills was commissioned as a Captain in the Army Research Unit while he undertook this work in association with the North Australia Observer Corps stationed at Katherine, Northern Territory. The collection of prints is incomplete, but a complete set of negatives is held in CRS M1173. There are duplicate copies of some photographs. At present there is no list of the photographs, but it would be possible to determine locations by referring to relevant entries in CRS M1172, Field books relating to Central Australia, 1943, in which information about areas photographed was noted. In addition, Item 10 in CRS M260, Personal papers of Edwin Sherbon Hills, Professor Emeritus, consists of a map of Australia on which the route followed by Professor Hills in 1943 has been marked. The route was Adelaide - Alice Springs (by air) - Katherine (by road) - Victoria River Downs - Halls Creek (by air) - Wyndham (by air) - Drysdale Mission and return (by air) - Forrest River Mission and return to wyndham (by sea) - Noonkambah - Fitzroy Crossing - Broome via Derby (by air) - Katherine (by air) - Tennant's Creek, then east across Barkly Tableland to Anthony's Lagoon, and north via McArthur River to Borooloola (by road) - Pellew Islands (landing at Vanderlyn Island) (by sea) - Roper Bar (by sea) - Katherine (by road) - Katherine Gorge and return (horseback) - Katherine - Adelaide (by air) - Melbourne (by train). The photographs are black and white, and of full plate size. Some are aerial, but the majority are ground photographs of
topographical features and landscape with a few depicting buildings and people. Pencil markings on the reverse of the photographs denote numbers in a single number sequence according to negativenumber.