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Lancashire, 1866 rev, 6". Engraved colour wash.
Engr, colour wash E¼ blank as Yorks, 27.5 x 40 - Very good. Flat cartridge.
About the England Six Inch County Series (first edition)
These hand-coloured engraved geological maps were published 1850-1900 by the Geological Survey of England and Wales, based on the county layout. The large sheet size covers 4 x 6 miles in considerable detail.
See also: Index Map for English Six Inch First Edition.