Mario [Giovanni Matteo de Candia]. (1810–1883) Autograph LetterA scarce autograph letter from the legendary tenor, one of the most celebrated singers of the 19th century. Creator of Ernesto in "Don Pasquale," he sang all the major French and Italian roles of the period, often appearing opposite his wife, the great soprano Giulia Grisi. 1 Page, no date. Addressed to Frederick Gye (1810 1878), manager of the Royal Opera House, Covent Garden. In full: "As we are lucky enough to be having dinner at Richmond, we will