His first important work was the opera Mefistofele (1868), which survived its initial failure and later grew in popularity. Rare AMQS on a 7.5 x 4.5 album page. Boito pens two detailed bars of music, probably from Mefistofele, signed underneath “Arrigo Boito, 23 Margo 1914.” Some scattered mild soiling, mounting remnants to top edge and a couple faint notations, otherwise fine condition. R&R COA.