New find: Army Apprentices school uniform buttons.
The Balcombe Army Camp at Mount Martha, Victoria was opened on 2nd June 1948 for boys from 15-17.5 years as a live-in school to undertake a 3 year Army trade qualification. In 1982 it was relocated to Latchford Barracks in Bongellia, near Wodonga. It closed in 1995.
From the web page of the Army Apprentice organisation: