This site was previously the site of a tourist attraction and centre of local knowledge until it was moved in 2012 to a new location with a new name (See OTC #3). The 'Symbol of Discovery' was created by sculptor John Skelton (1923-1999) and was unveiled by Sir Charles Wheeler in 1963. The sculpture depicts two hands cradling a man-made jewel of gold leaf set in plastic. The piece was commissioned by Stanley Roth, a local architect.
**UPDATE** (30/07/2015)
EXTREME STEALTH REQUIRED: As there is currently building work going on, the site seems to be plagued by the coming and going of various trades. I suggest extreme stealth be used or the cache located at a time when work is not being carried out (i.e. early morning/evening). I'll keep an eye on this location and update the page as appropriate.