I’m out of real-life phone boxes, so here’s the interior of the one I drew for my game Barry Basic and the Quick Escape.
I based it on an image of a mid-century phone box interior I found online, as the game is set in 1969. The A and B mechanisms were to do with coin return (explained here under ‘Coin Boxes’).
Most of my planned games for the next year have phone boxes in. I think I’ve just been missing seeing real-life examples!