Columbia subject headings:
Drawing, Irish.
Historic sites--Ireland--Pictorial works.
Ireland--Antiquities--Pictorial works.
Harvard subject headings:
Drawing, Irish.
Historic sites--Ireland--Pictorial works.
Ireland--Antiquities--Pictorial works.
Ireland--Antiquities.
Ireland--Description and travel--1800-1850.
Northern Ireland--Antiquities.
Northern Ireland--Description and travel--1800-1850.
Ordnance Survey of Ireland--History--19th century.
Ordnance Survey of Northern Ireland--History--19th century.
Princeton subject headings:
Drawing, Irish.