1. RP 10512 Reference (shelfmark): RP 10512 Title: Scope & Content: METASTASIO, Pietro. Autograph letter signed, to Count Fattiboni regarding the writing of librettos. Vienna. Creation date: 30 September 1762. Collection Area: Western Manuscripts Languages: Italian Date Range: 18 Jun 2015 Extent: Digital images (1 disc)