1. RP 6160/2 Reference (shelfmark): RP 6160/2 Title: Scope & Content: Typed ‘Logisch-Philosophische Abhandlung’ (from Annalen der Naturphilosophie) with autograph corrections, marginal comments and printing instructions, Leipzig Creation dates: 1921 Collection Area: Western Manuscripts Languages: Undetermined Date Range: 29 May 1996 Extent: 66 photocopies