1. IOR/L/PS/11/146, P 423/1919 Reference (shelfmark): IOR/L/PS/11/146, P 423/1919 Title: P 423/1919 HMS 'Diana' to maintain the blockade of the Coast between Perim and Mokalla Collection Area: India Office Records and Private Papers Languages: English Date Range: 16 Jan 1919-22 Jan 1919 Extent: 1 file