11. IOR/M/6/27 Reference (shelfmark): IOR/M/6/27 Title: Scope & Content: Coll 4/11 Air Services: Assam-Burma-China Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1939-Aug 1942 Extent: 1 file
12. IOR/M/6/28 Reference (shelfmark): IOR/M/6/28 Title: Scope & Content: Coll 4/12 Air freight transport between Burma and China: Myitkyina-Yunnanfi Collection Area: India Office Records and Private Papers Languages: English Date Range: May 1941-Mar 1942 Extent: 1 file
13. IOR/M/6/29 Reference (shelfmark): IOR/M/6/29 Title: Scope & Content: Coll 4/13 Air Services (Civil): Sichang-Sadiya Collection Area: India Office Records and Private Papers Languages: English Date Range: Jul 1941-Jul 1942 Extent: 1 file