The
spire was probably completed with the bell chamber
at the top of the tower in the 15th century. It
was painted white in 1912 at the request of Trinity
House, the government's maritime authority, so
it could be used as a landmark for ships navigating
the Thames.
On
the rafters are several pairs of initials, some
with dates: FB 1863, PR 1912, TB (Tom Bailey)
1912, OB 1920, LHB, SB (Saffary Bailey).