Medium: Pen and ink on paper
This drawing covers the coastal area of the Bristol Channel. Pencil lines extending from a point adjacent to Honey Comb indicate the angular measurements taken to plot the coastline. Haven Military Battery is clearly marked at the mouth of the River Avon. Detail such as this is testimony to the military impetus behind the survey. A dotted red line running along the river Avon represents the old boundary between the counties of Somerset and Avon.