Just found a news story on a reel of colour film found in a QANTAS facility. Shows the Empire flying boats along with refuelling, infrastructure, and other interesting aspects in the late 1930s.
Thought I'd post the link to the news story if it hasn't been done already.
https://www.abc.net.au/news/2020-11-15/qantas-celebrates-centenary-with-bygone-era-flying-boat-film/12881604
DennisTheBear