Most postboxes (pillar boxes) in the UK are red cylinders and some even have GR on them which stands for George Regina. These were made in the reign of George VI. Some are marked ER, the reign of Queen Elizabeth II.

Postboxes are made of cast iron. They are traditionally painted red, but recently have been painted gold in towns where sports people won gold medals at recent Olympics. I like this box that had been put into a stone wall.

Another thing that happens is the cylinder ones are being yarnbombed. Where people knit or crochet covers for the top of the box, including characters and buildings etc. These are very funny to see. There’s a page on Facebook about it.