1. RP 7629 Reference (shelfmark): RP 7629 Title: Scope & Content: POSTAL HISTORY. De-Regulated O.H.M.S. Envelope, addresed to Sir Ernest Shackleton in Buenos Aires Creation dates: 14 October 1914 Collection Area: Western Manuscripts Languages: English Date Range: 20 Mar 2001 Extent: 1 photocopy