1. IOR/R/1/4/1097 Reference (shelfmark): IOR/R/1/4/1097 Title: File Est A Con B 13 1921 Personal file of Lieut. Colonel A.P. Trevor, C.S.I., C.I.E., of the Political Department. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1898-1915 Extent: 1 file