I think a Saxon Church was built on a Pagan site – and then eventually replaced with a Norman construction which still stands today. After photographing these constructions and enquiring as to their function – a number of experts stated that they look like ‘Homeless Spikes’ (or earlier prototypes) designed to keep people from entering and loitering in certain areas deemed ‘sensitive’ by landlords, business owners and caretakers of State property! These constructs, however, seem to pre-date the ‘modern’ incarnations of ‘Homeless Spikes’ – but almost certainly serve the same function – despite not appearing on any other corner of the outer Church construct!