Le bal masqué = Un ballo in maschera : grand opéra en quatre actes / paroles françaises de Ed. Duprez ; musique de G. Verdi.

Libretto by A. Somma, based on Scribe's Gustave III. Cf. Loewenberg, Annals of Opera.
Lithographed.
A later edition of Hopkinson 59 A (l) (Paris: Escudier, 1861).
Among the differences between the two editions: the name of the page has been changed from Oscar to Edgard; the abbreviated names of the orchestral instruments have been added to the piano part; Ulrique's words are entirely different in the two editions; on p. 19, second system, measures 2-3, and third system, measure 1, the right hand of the piano part has been changed; and in some recitatives the vocal lines have been changed to accomodate a new text.