1. MUS RP 6154/4 Reference (shelfmark): MUS RP 6154/4 Title: Scope & Content: HUMMEL, Johann Nepomuk. Typed transcript of letter to Mr T Boosey & Co Creation dates: 2 Oct 1825 Collection Area: Music Collections Languages: Undetermined Date Range: 13 May 1996 Extent: 1 photocopy