AIR ROUTE ROCKHAMPTON - BLACKALL, Map No. 39., Scale 16 Miles to 1 Inch, 1932-05-17 Box 1 Unit ID: 20 Date: 1932-05-17
AIR ROUTE ROCKHAMPTON - BLACKALL, Map No. 39., Scale 16 Miles to 1 Inch, 1939-08-18 Box 1 Unit ID: 21 Date: 1939-08-18