1. IOR/L/PS/11/61, P 3509/1913 Reference (shelfmark): IOR/L/PS/11/61, P 3509/1913 Title: P 3509/1913 China: protection of trade-marks Collection Area: India Office Records and Private Papers Languages: English Date Range: 15 Feb 1913-31 Jul 1917 Extent: 1 file