Here’s another Scottish one found by Mum and Dad.
(Coordinates 56°88’75.0″N, 4°83’48.8″W.)
You can’t quite see this one from the road as it’s in the grounds of East Park B&B – the Google image linked above is as close as I could get.
A bit unloved, this box! It does say ‘You may telephone from here’ but the phone doesn’t work. It’s also missing its door. Hopefully it’ll receive a bit of a spruce-up soon.