Ory's archive
My collection includes archival materials on the history of musicology, such as publicity scrapbook for Gustave Reese’s Music in the Middle Ages (1940), Walter Gerstenberg’s unpublished Habilitationsschrift "Beiträge zur Problemgeschichte der evangelischen Kirchenmusik" (1935), and the papers of Peter Gradenwitz (1910–2001), a German-Israeli musicologist. High-resolution, publication-ready scans are available on request.
I also own a piano-vocal score of an early nineteenth-century Venetian opera by Stefano Pavesi, for which few excerpts survive.