Columbia subject headings:
Penn, Irving--Exhibitions.
Harvard subject headings:
Dancers--Pictorial works
Penn, Irving--Exhibitions.
Photography of the nude--Exhibitions.
Photography, Artistic--Exhibitions
Princeton subject headings:
Beller, Alexandra--Portraits--Exhibitions.
Dancers--Portraits--Exhibitions.
Penn, Irving--Exhibitions.
Photography of the nude--Exhibitions.
Portraits.