Bit of logic (four tracks, OHLE, XC 221); very few possible answers if I'm honest.
And now, as TP suggests, my 50th. A special one. And when this is over, I will provide some details about the 50 I've done to date, including a map (which I'm working on at present).
And before anyone asks, yes, there is a station in this picture.
I don't care if this goes in two seconds to be honest. I've just been waiting for the right time to do this one!