1. IOR/L/MIL/7/16688 Reference (shelfmark): IOR/L/MIL/7/16688 Title: Collection 402/23 War Balloon Section at Rawalpindi; despatch of Balloon Section to China under command of Brevet Lieutenant Colonel J.R. Macdonald, Royal Engineers. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1900-1902 Extent: 1 file