The Bureau of Mineral Resources, Geology and Geophysics was formed in 1946. It replaced the Mineral Resources Survey (1942-46) whose forerunners were the Aerial Geological and Geophysical Survey of Northern Australia (AGGSNA) (1934-1941) and the earlier Imperial Geophysical Experimental Survey (IGES) (1928-30). The notably large BMR geophysical achievement has used a wide variety of geophysical and allied measuring apparatus, much of which was placed in storage as its effectiveness declined. The collection has been further enhanced by direct donation from exploration companies and joint international programs. One hundred and ten artefacts from the collection were recorded, along with details of origin and use where known. Reference is made to early literature describing many of the objects. This account provides a general overview of the collection.