From today's trip into Macclesfield.
Firstly one opposite the library, its very faint, but I noticed it and looking at the OS Benchmark database (thanks
@Bobby Mhor) it is on that.
And a plaque of some sort (I'm sure someone more knowledgeable can say what it is). It was just to the right (to be precise almost a tandem length) of the bench mark above.
And then a cut mark on the church in the centre of town.