1. MUS RP 6945 Reference (shelfmark): MUS RP 6945 Title: Scope & Content: Nikolai Rimsky–Korsakov. Autograph letter signed to Michel Calvocoressi. Sotheby’s sale 07 Feb 2001 lot no. 173. Creation dates: Undated Collection Area: Music Collections Languages: Undetermined Date Range: 13 Feb 2002 Extent: 2 photocopies