Columbia subject headings:
Art--Collectors and collecting--United States--Pictorial works.
Businessmen--United States--Pictorial works.
Hammer, Armand, 1898-1990--Pictorial works.
Hammer, Armand, 1898-1990--Travel--Pictorial works.
Harvard subject headings:
Art--Collectors and collecting--United States.
Businessmen--United States--Portraits.
Hammer, Armand, 1898-1990--Journeys--Pictorial works.
Hammer, Armand, 1898-1990--Portraits.
Princeton subject headings:
Art--Collectors and collecting--United States--Iconography.
Businessmen--United States--Iconography.
Hammer, Armand, 1897---Iconography.
Hammer, Armand, 1897---Travel--Pictorial works.