Two maps of the Northern Territory, 'A plan Shewing natural features of Triconometrical survey, the Geological & Mineralogical Data inserted by Ralph Tate, NT', photo lithograph, published by the Surveyor General's office, Adelaide 1882, 56.5 x 76 cm, together with Geological Colouring by Ralph Tate, F.G.S. Of the Northern Territory of South Australia, June 6 1882, photo lithograph, published by E Spiller, Government Printer, Adelaide, 42 x 40 cm