Derbyshire 19nw, 6". Barlborough, 1950/1954, black outline, red geology.
Derbyshire 19nw, 6". Barlborough, 1950/1954, black outline, red geology. Includes parts of Yorkshire 299,300. In very good 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.