1. MUS RP 6846 Reference (shelfmark): MUS RP 6846 Title: Scope & Content: Sir Arthur Sullivan: autograph working manuscript of the Overture ‘Di Ballo’. Sotheby’s sale 9 December 1999 lot no.247. Creation dates: Undated Collection Area: Music Collections Languages: Undetermined Date Range: 17 Dec 1999 Extent: 94 photocopies