Derbyshire 58sw, 6". Calke Park, 1901/1905, black outline, blue geology.
Derbyshire 58sw, 6". Calke Park, 1901/1905, black outline, blue geology. Includes part Leicestershire 9sw. Hand coloured except for drift areas. Cut, mounted on linen, folded between red card covers. In very good to fine condition.
About the England Six Inch County Series (later edition)
These early 20th century geological maps are at 1:10,560 scale, based on county layout. Each sheet covers 2 x 3 miles in considerable detail.