1. IOR/L/PJ/7/3880 Reference (shelfmark): IOR/L/PJ/7/3880 Title: File 3539 Holwell Monument commemorating the "Black Hole" tragedy at Calcutta - agitation for removal; arrest of Subhas Chandra Bose Collection Area: India Office Records and Private Papers Languages: English Date Range: 19 Jul-22 Aug 1940 Extent: 1 file