Silver RMC Duntroon cap/collar badge

[DaveA]

Hi, I recently acquired a sterling silver Royal Military College Duntroon cap/collar badge of the 1913-1948 pattern and I was wondering if anyone knew for whom they were made and who might have worn them.

It is corrected hallmarked "Stg Sil" for late 19th or early 20th century Australia and maker marker "Stokes & Sons, Melb". The sterling silver version is noted in Cossums book on Badges of the Australian Army in the 1912-1918 section (Entry No 154) so it is an official issue item but beyond that I can't find out anything.

Does anyone have any ideas? Any help would be gratefully appreciated.