1. MS Mus. 1813/2/1/19-21 Reference (shelfmark): MS Mus. 1813/2/1/19-21 Title: Theatres and Opera Houses, 1945–1947: correspondence Scope & Content: Correspondence mainly with European theatres and opera houses. Collection Area: Music Collections Languages: English, French, and German Date Range: 1946-1947 Extent: 3 boxes