Records of four of Nathan Halper's Provincetown galleries measure 4.2 linear feet and date from 1952-1979. The records relate to Kootz Gallery, H-C Gallery, HCE Gallery, and Sun Gallery - all based in Provincetown. The bulk of the collection consists of correspondence with artists, estate executors, collectors, galleries, and museums. There are also scattered business and financial records documenting operations and sales, photographs and slides, printed materials, and one poem. Correspondents include Milton Avery, Anthony Caro, John Murray Cuddihy, Marsden Hartley, Hans Hoffman, Samuel Kootz, Robert Motherwell, David Smith, Richard Stankeiwicz, and many others.