Draughtsman: Dawson, Robert
Medium: Pen and ink on paper
This plan of part of East Carmarthenshire and West Pembrokeshire shows the county border as a red line near the right margin of the sheet. A table above the plan gives trigonometrical data. Triangulation lines in pencil are clearly visible outside the surveyed area. Colour washes are used to indicate relief, with numbers at the summit of inclines giving their altitude in feet.