Columbia subject headings:
Photography, Artistic.
Walther, Thomas--Photograph collections.
Harvard subject headings:
Photography, Artistic--Catalogs
Photography--Private collections--Catalogs.
Photography--United States--History--20th century--Catalogs.
Walther, Thomas--Photograph collections--Catalogs.
Princeton subject headings:
Catalogs.
Photography, Artistic--Private collections--Catalogs.
Photography--20th century--United States--Catalogs.
Photography--Private collections--United States--Catalogs.
Walther, Thomas--Photograph collections--Catalogs.