I will post a few that interested me so much that they came to join my collection.
You can see that if you combine the information from both the front and the rear, you can often work out the date from the Postmark if it isn't pre printed on the card itself, as well as the pre printed detail of the subject. When there is a handwritten message, that can sometimes hint at the reason why the Postcard was sent to that person. If you are really lucky, you might find a personal autograph rather than a pre printed one.
Ian Grieve OAM
Lawrence Halbert was a Staff Announcer on 2FC This Postcard is 1927, not the 1924 written on the rear.