The pirates of Penzance, or, The slave of duty : an entirely original comic opera in two acts / written by W.S. Gilbert ; composed by Arthur Sullivan.

Cast lists for productions at the Bijou Theatre, Paignton (Dec. 30, 1879), Fifth Avenue Theatre, New York (Dec. 31, 1879), Opera Comique, [London] (Apr. 3, 1880), and the Savoy Theatre, [London], Mar. 17, 1888, and June 30, 1900--p. [2].