My father was something of a magpie, but made stamp collecting and postcard collecting into "real" hobbies.
The postcards were accumulated at first by saving any he was sent, and sending himself any he bought while on holidays. He often had patients who were sailors and would visit for a check-up, and if they were going anywhere interesting, he would jokingly ask them to send him a card when they were away.
On occasion he did receive them, but one man took it to heart and for several years sent a card every few months. They were always addressed to "Doctor" and signed MG Holmes.
The earliest one I have found (there may be others in albums) is dated 17/12/79 and is from Singapore.
As you may be able to see, it shows the National Theatre and water fountain.
According to the back of the card, "The National Theatre is situated at the King George V Park of River Valley Road. Most of the states cultural shows are held in it. The water fountain built in front of it is the biggest water fountain in Singapore."
No doubt the area has changed dramatically by now, almost 30 years later.