Columbia subject headings:
Harvard subject headings:
Cartography--Great Britain--History.
Cartography--Ireland--History.
Great Britain--Index maps--History.
Great Britain. Ordnance Survey--History.
Ireland--Index maps--History.
Princeton subject headings:
Cartography--Great Britain--History.
Cartography--Ireland--History.
Great Britain--Index maps--History.
Ireland--Index maps--History.