My last visit to Wigton was in 1985 when I managed to get much closer to the signal box for a better photograph. Today, the box still stands and the mechanical signalling is still in full operation. The box is a standard British Railways design and dates from 1957. The short spur into the loading bay does not appear to have seen traffic for some time!
NB on my 2024 re-visit I took a very similar image, see....
https://www.ontheupfast.com/p/21936chg/30056636681/wigton-signal-box-br-1957-up-starter