A new post office was opened at Parramatta in 1965/66.
1970
Parramatta became a first day of issue postmarker office on 11 February 1970.
Parramatta became a Philatelic Sales Centre on 1 July 1970.
1974
1975
1976
1977
A new pictorial first day of issue postmarker was introduced on 19 October 1977.