Collection documents the Italian businessman's activities in collecting works by some of the seminal American artists involved
with abstract expressionist, pop, minimal, conceptual, environmental, and light and space art. The archive contains material
dating from 1956, when Panza began collecting. up to the sale of the second part of his collection to the Guggenheim Museum
in 1990. Panza's art collection is documented by correspondence with artists and galleries, photographs, small drawings, invoices,
loan requests, announcements, and invitations. The archive also includes a substantial quantity of Panza's writings on art;
papers and ephemera related to Panza's associations with museums, galleries, and cultural institutions; clippings and photocopies
of articles about the collection; and an extensive group of architectural drawings of potential sites for the collection,
many with Panza's installation designs.