Visit the Australian Army Museum of Western Australia web site
https://armymuseumwa.com.au/
History of the 2/3 Aust Field Regiment
https://vwma.org.au/explore/units/619
https://en.wikipedia.org/wiki/2/3rd_Field_Regiment_(Australia)
Yeramba, the Australian Self Propelled 25 Pounder
https://en.wikipedia.org/wiki/Yeramba
Build your own 25 pounder
https://www.amazon.com/Dragon-Models-British-25-Pdr-Limber/dp/B00681SB2Y