Due soci. Libretto. Italian. Public domain libretto, Library of Congress

di E. Fiorentino ; musica di Gialdino Gialdini. (statement of responsibility)
U.S. RISM Libretto Project.
Legal notices on cover, title page and p. 2; printed price: "L. 1"--title page; advertisement on back cover.
Publication date from second imprint: "Bologna, 1892. Stab. tip. Zamerani e Albertazzi, piazza Cavour 4, palazzo Silvani"--p. 2.
Singers' names not given.