1. IOR/L/E/9/1326 Reference (shelfmark): IOR/L/E/9/1326 Title: Collection 159/15 Telegraphy - International Radio-Telegraph Conference, Madrid, 1932. Revision of the 1927 Convention and Regulations Collection Area: India Office Records and Private Papers Languages: English Date Range: Sep 1930-Oct 1937 Extent: 1 file