Sorry to all for the delay, work keeping me away from the computer.
Many thanks Diapason, this is a doorway I know well from when I worked at the church over 15 years ago. The door is not visible on the interior due to a major scheme of restoration to the church, especially its interior as it was made of chalk blockwork (a very unusual material to use in Kent for face-work). Having been un-roofed and a particularly wet, and then severe cold winter, the interior chalk blockwork largely shattered despite the covering the walls with hessian sheets and straw bales and the lighting of braziers inside the church, each maned 24hrs a day. This meant the entire interior required replacing with the architect/builder requiring large amounts of cut chalk blocks (known as 'clunch') to reface the entire interior. This was coupled with the redressing of the exterior wall faces with knapped flintwork, all in a typical Victorian style, which is why the church appears more modern than its early Norman origin. The west door, which is partially formed of 'Tufa' (a mainly calcium carbonate derived stone particularly like by the Romans and Normans alike) was partially preserved as an antiquarian feature during these works.
However, here is my next one, but where is this mid eighteenth century view of this Kent church?