Columbia subject headings:
Great Britain--Antiquities--Collection and preservation.
Historic sites--Conservation and restoration--Great Britain.
Historic sites--Conservation and restoration.
Harvard subject headings:
Great Britain--Antiquities--Collection and preservation.
Historic sites--Conservation and restoration
Historic sites--Conservation and restoration--Great Britain.
Princeton subject headings:
Great Britain--Antiquities--Collection and preservation.
Historic sites--Conservation and restoration.
Historic sites--Great Britain--Conservation and restoration.