Post Office Preferred envelopes sold in Australia have four boxes in the bottom right corner of the front of the envelope. These boxes or squares, which Australia Post calls postcode squares, have the postcode for hand-addressed mail, for Australia Post's automated mail-sorting equipment, which uses optical character recognition software. Postcode squares were introduced in 1990.
Australia Post says that postcode squares should not be used for machine-addressed mail, or mail going overseas.
Read more about this topic: Postcodes In Australia
Famous quotes containing the word squares:
“An afternoon of nurses and rumours;
The provinces of his body revolted,
The squares of his mind were empty,
Silence invaded the suburbs,”
—W.H. (Wystan Hugh)