The University of Pittsburgh Press has made 500 out-of-print titles open access with a future fee-based print-on-demand option.

http://digital.library.pitt.edu/p/pittpress/

Here are the titles for the category "History -- General":

Title: After Marx, before Lenin : Marxism and socialist working-class parties in Europe, 1884-1914
Author: Steenson, Gary P., 1944-
Publication Info: Pittsburgh, Pa. : University of Pittsburgh Press, c1991.

Title: The dispute of the New World; the history of a polemic, 1750-1900.
Author: Gerbi, Antonello, 1904- cn
Publication Info: [Pittsburgh]: University of Pittsburgh Press, [1973]

Title: Echoes of two cultures.
Author: Young, Arthur Milton, 1900-
Publication Info: Pittsburgh,: University of Pittsburgh Press, [1964]

Title: Fifteenth century England.
Author: Hunt, Percival, 1878-
Publication Info: [Pittsburgh]: University of Pittsburgh Press, [1962]

Title: Legend builders of the West.
Author: Young, Arthur Milton, 1900-
Publication Info: [Pittsburgh]: University of Pittsburgh Press, [1958]

Title: Little common ground : Arab agriculture and Jewish settlement in Palestine, 1920-1948
Author: Kamen, Charles Samuel, 1939-
Publication Info: Pittsburgh, PA : University of Pittsburgh Press, c1991.

Title: Ludwig Bamberger : German liberal politician and social critic, 1823-1899
Author: Zucker, Stanley, 1936-
Publication Info: [Pittsburgh] : University of Pittsburgh Press, [1975]

Title: Michelangelo's David : a search for identity
Author: Seymour, Charles, 1912-
Publication Info: Pittsburgh : University of Pittsburgh Press, 1967.

Title: Nature in the New World : from Christopher Columbus to Gonzalo FernaÌndez de Oviedo
Authors: Gerbi, Antonello, 1904-, Gerbi, Antonello, 1904- Natura delle Indie nove. English.
Publication Info: Pittsburgh, Pa. : University of Pittsburgh Press, 1986, c1985.

Title: The Nazis in the Balkans; a case study of totalitarian politics.
Author: Orlow, Dietrich. cn
Publication Info: [Pittsburgh]: University of Pittsburgh Press, [1968]

Title: Not one man! Not one penny! : German social democracy, 1863-1914
Author: Steenson, Gary P., 1944-
Publication Info: Pittsburgh, Pa. : University of Pittsburgh Press, c1981.

Title: The Parlement of Paris after the Fronde, 1653-1673
Author: Hamscher, Albert N.
Publication Info: Pittsburgh : University of Pittsburgh Press, c1976.

Title: Progressivism and the open door; America and China, 1905-1921.
Author: Israel, Jerry.
Publication Info: [Pittsburgh]: University of Pittsburgh Press, [1971]

Title: Troy and her legend
Author: Young, Arthur Milton, 1900-
Publication Info: [Pittsburgh, Pa.] : Univ. of Pittsburgh Press, 1948.

Title: Weimar Prussia, 1918-1925 : the unlikely rock of democracy
Author: Orlow, Dietrich.
Publication Info: Pittsburgh, Pa. : University of Pittsburgh Press, c1986.

Title: Weimar Prussia, 1925-1933 : the illusion of strength
Author: Orlow, Dietrich.
Publication Info: Pittsburgh, Pa. : University of Pittsburgh Press, c1991.