1. IOR/R/20/B/624 Reference (shelfmark): IOR/R/20/B/624 Title: File 57/2D of 1939 Postal Matters: express postal service etc. heads and arrangement and detailed regulations governing the exchange of parcels between Great Britain and Aden Collection Area: India Office Records and Private Papers Languages: English Date Range: 13 Jun 1939-21 Oct 1939 Extent: 1 file