Columbia subject headings:
Istanbul (Turkey)--Pictorial works.
Middle East--Pictorial works.
Photography--Religious aspects--Islam.
Photography--Turkey--History--19th century.
Harvard subject headings:
Istanbul (Turkey)--In art.
Middle East--In art.
Photography--Religious aspects.
Photography--Turkey--History.
Princeton subject headings:
Istanbul (Turkey)--Pictorial works.
Middle East--Pictorial works.
Photography--Religious aspects--Islam.
Photography--Turkey--History--19th century.