The sculptor who made this was Eric Gill who did some of the work in situ here.He tried to be true to the medieval stonemasons and wore a monks habit,without underware.It was a source of innocent amusement for passersby to stop for a while ,look up and admire his handy work,so to speak.More at http://www.btinternet.com/~roger.beckwith/bh/bh32/bh32_es.htm