“I soon learnt there are only a handful of AA boxes left in their original locations across the country, so when I realised this one hadn’t yet been listed, I wrote to Cadw straight away.
"Cyn bo hir dysgais mai dim ond llond llaw o flychau’r AA sydd ar ôl yn eu lleoliadau gwreiddiol ledled y wlad, felly pan sylweddolais nad oedd hwn wedi'i restru eto, ysgrifennais at Cadw ar unwaith.