And, yet here is one today, on the Uxbridge Rd, freshly painted, in all its garish finery, as if to say "look at me, I'm a yellow post box. What are you going to do about it?"
There is even a helpful chalk mark on the ground announcing "wet paint" to prove its newness.
What can this mean? Is the Post Office changing its colours? Or perhaps they have run out of red paint?