1. RP 10891 Reference (shelfmark): RP 10891 Title: Scope & Content: Viscount CORNBURY (Henry Hyde, 1710-53). 'The Mistakes', a drama in autograph manuscript. (Posthumously published in 1758 with a preface by Horace Walpole.) Creation date: [Before 1753]. Collection Area: Western Manuscripts Languages: English Date Range: 3 Jan 2017 Extent: Digital images on 1 compact disc.