Don Carlo : opera in cinque atti / parole di Méry e Camillo Du Locle ; musica di G. Verdi ; traduzione italiana di Achille de Lauzières ; rappresentata per la prima volta a Parigi sul teatro Imperiale dell'Opéra l'11 Marzo 1867.

First edition with Italian text.
Based on Schiller's play Don Carlos.
The singers listed under "Personaggi" are Obin, Morère, Faure, David, Castelmary, Sass, Gueymard, Levielly, Dominique, Gaspard, and Mermant.
"4-67": p. [5] ; "Don Carlo 4-67": p. 13, 37, and 45.
Blind stamp dated "[18]67/4[?]": p. [1] of cover.
Additional publisher: Escudier, Paris.
According to J.J. Fuld, The book of world-famous libretti (p. 71), the copyright deposit copy in the British Library of the Italian libretto of Don Carlos lists Léon Escudier, Paris, as the publisher and mentions Ricordi, not vice versa, and has 63 p., not 68.