Wardens uniform buttons:
NSW Department of Correctional services; Amor Sydney
The term “Department of Correctional Services” dates from 1970. As Amor became Amor-Sanders in 1978, perhaps these buttons date prior to then.
Penal Department Vic; Stokes and Sons
The term ‘Penal Department’ is an older one. I guess these buttons date between 1952-1962 when Stokes and Sons became Stokes (Australasia) Ltd.