Documento
Henley-in-Arden
This plan covers parts of Warwickshire and Worcestershire. Hill contours are described by brushwork interlining ('hachuring') combined with shaded bands of colour wash, which graduate to almost colourless at the summits. The order of ascending heights is expressed by rising numbers, a technique that became known as 'relative command'. Colour washes and symbols distinguish woods, meadows, common and arable land.
The British Library1814
1814