Cumberland 44ne, 6". Maryport, 1927/1928. Black outline and contours with blue geology.
Cumberland 44ne, 6". Maryport, 1927/1928. Black outline and contours with blue geology. 80% sea. 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.