1. Add MS 50272 A-M Reference (shelfmark): Add MS 50272 A-M Title: COTTRAU MANUSCRIPTS. Vol. XI A-M. Libretti, except where noted, of the operas; 1877-1924, n.d. Italian, unless otherwise indicated. Mostly printed. Folio, quarto and octavo. Collection Area: Music Collections Languages: English Date Range: 1877-1924 Extent: 13 items