1. Zweig MS 22-23 Reference (shelfmark): Zweig MS 22-23 Title: Johannes Brahms: Letters to Peter Joseph Simrock; 1861, [1865] Scope & Content: Autograph. Collection Area: Music Collections Languages: German Date Range: 1861-1865 Extent: 2 volumes
2. Zweig MS 23 Reference (shelfmark): Zweig MS 23 Title: Johannes Brahms: Letter to Peter Joseph Simrock Scope & Content: Autograph. ‘Lilienthal 136, Baden-Baden’ (f. 2r); n.d., but endorsed ‘No. 1092. Baden-Baden d. 2/10.65. Brahms’ in another hand (f. 2v). Pencil numbers ‘524/2’ and ‘914’, in sequence with those on Zweig 22, added at foot of f. 1r. Collection Area: Music Collections Languages: German Date Range: [1865] Extent: 1 volume (2 folios)
3. Zweig MS 22 Reference (shelfmark): Zweig MS 22 Title: Johannes Brahms: Letter to Peter Joseph Simrock Scope & Content: No place; dated ‘Juli 61’ (f. 1r). Numbers ‘524/1’ and ‘913’ added in pencil on f. 1r appear to be by dealers or previous owners. Collection Area: Music Collections Languages: German Date Range: Jul 1861 Extent: 1 volume (2 folios)
