A vertical sundial , as the name implies, has its dial mounted vertically, usually on the wall of a building. in distinction to a horizontal dial which has its dial plate placed horizontally, either on the ground or on a pedestal.
  Geographical location Dial Type
Vertical		 Latitude/Longitude
52°27'N 2°21'W
St. Mary's Church, Alveley, Shropshire
 Photo By
 John Lester 		British Grid Reference
SO 759845
St. Mary's Church, Alveley, Shropshire

The fact that the dial plate is carved into the masonry of the buttress indicates that the dial is an old one. Later dials tended to be engraved on a separate tablet of stone or slate and fixed to the wall by clamps. The gnomon is clearly a modern replacement(probably 1980s) and appears to be of stainless steel. It is perforated with a fleur de lys. There are no VI a.m or p.m. numerals and the angles between the six o'clock and the VII and V look much too wide.

J P Lester