Visser, Joh. C. composer. Michelsohn, Felix. librettist. text Rotterdam : Nijgh & Van Ditmar, [n.d.] ger U.S. RISM Libretto Project. Imprint from front cover; texts of libretto proper and preliminaries in German; synopsis in Dutch for each act preceding same; advertisement in Dutch--p. [1] at end; publisher's list in Dutch--p. [6] at end; text of libretto proper and preliminaries in German. "Gewaarborgd volgens art. 10 der wet van 28 Juni 1881 (Staatsblad No. 124)"--front cover and title page. "Gedrukt bij Nijgh & Van Ditmar - Rotterdam"--p. [6] at end. Performers' names not given. Operas--Librettos. Salomone Zuppa Maddalena Carmela Lorenzo Verria Duratto Zerline http://hdl.loc.gov/loc.music/musschatz.20927