If you want to see 15th century graffiti and murals, then you need to visit the Church of St. Vincent in north Hertfordshire.
‘Basher’ Dowsing of Suffolk!
William ‘Basher’ Dowsing (1596 – 1668) was born in Laxfield, Suffolk, was a puritan and made his name during the English Civil War (1642-49), a war that split the country between Parliament and Royalty.
Stonemason Marks
Look closely at the walls of many medieval churches and, if the light is right, carefully inscribed marks can be seen.