This collection of print materials, many of them rare and ephemeral, was assembled over many decades by Guido Mazzoni, an Italian Senator, Dante scholar, professor, and bibliophile. The approximately 49,648 pieces span the years 1572 through 1946, with the bulk dating from the mid-18th to the early 20th centuries. Topics range widely and include Italian politics, particularly the rise of Socialism and Fascism; Italian humanities, especially poetry, theater, and opera; Dante studies; patriotic writings, including some by Mussolini and others in his regime; and the history and context of both World Wars. Popular literary and cultural serials abound, many with writings by noted authors, including women writers. Given Mazzoni's background in academics, his friendships with publishers, and his residence in Padova and Firenze, many of the authors are Jewish. Many of the pieces were sent to Mazzoni from former students or colleagues and are inscribed to him. Mazzoni collected many rare pieces from the 17th, 18th, and 19th centuries; broadsides from Napoleonic, Medicean, and Borbonic Italian regions are numerous. Formats represented in the collection include: pamphlets, offprints, clippings, full-issue newspapers (many from the Piedmont), libretti, scores, manuscript items, small cards, periodicals, small volumes, political broadsides, epithalamia (pieces produced on the occasion of a wedding), and one handmade photo album. There are many illustrated publications, fine engravings, woodcuts, and items with map inserts. About 80 percent of the material is in the Italian language: other common languages include Latin, French, English, German. There are also some publications in Greek, Spanish, Catalan, Portuguese, and Eastern European languages.