1. RP 7277/4 Reference (shelfmark): RP 7277/4 Title: Scope & Content: Autograph Letter Signed from D Blackburn to his friend, Richard Harper, his appointment to HMS 'Dictator' (with draft reply) Creation dates: 17 Sep 1793 Collection Area: Western Manuscripts Languages: English Date Range: 14 Oct 1999 Extent: 2 photocopies