10/100 - MI Duntroon and airport from Red Hill, 15 September 1974 Folder 6 (P1026) Unit ID: P1026/1858 Date: 15 September 1974
10/102 - CSIRO same as 9/102, c. February - March 1975 Folder 6 (P1026) Unit ID: P1026/1870 Date: c. February - March 1975