Columbia subject headings:
Photography--Great Britain--History--19th century.
Photography--Great Britain--History--20th century.
Harvard subject headings:
Harry Ransom Humanities Research Center--Photograph collections--Exhibitions.
Photography--Great Britain--History--19th century--Exhibitions.
Photography--Great Britain--History--20th century--Exhibitions.
Princeton subject headings:
Photography--Great Britain--History--19th century.
Photography--Great Britain--History--20th century.