Resource for postmarks from around Australia are available on the Australia Post Collectables website.

    Postmarks are used to cancel postage stamps on mail items and to record the date and place the items entered the mailing system. The postmark comprises a date, a location (which must have a post office attached to it) and a postcode.

    Postmarks are normally black, although there are occasions when coloured postmarks are used. They generally fall into the following categories:

    • First Day of Issue
    • Permanent postmarks
    • Temporary postmarks