Lancashire 93nw, 6". Upholland, 1929/1934, grey outline, black geology, red contours.
Lancashire 93nw, 6". Upholland, 1929/1934, grey outline, black geology, red contours. 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.