Sind sie treu
Subtitle: Oper in vier Akten
By: neue Bearbeitung des Textbuchs zu Mozarts Così fan tutte von G. Bernhard
Contributors: Bernhard, G.; Da Ponte, Lorenzo, 1749-1838
Publisher: Manuscript, als solches gedruckt von den Gebrüdern Mäntler in Stuttgart
Published: 1858
Place of publication: [Stuttgart]
Language: ger
Number of pages: 43
Subjects: Librettos; Operas
Work titles: Così fan tutte
Notes: U.S. RISM Libretto Project.

Signature of Moritz L[   ]--verso of title page; "Vorbemerkung" dated "Mai 1858"--p. III-IV; "Nachträge zu den Anmerkungen"--p. [1] at end.

Libretto by Da Ponte--New Grove.

Performers' names not given.