1. IOR/L/PS/11/167, P 600/1920 Reference (shelfmark): IOR/L/PS/11/167, P 600/1920 Title: P 600/1920 Monsieur Jukowsky, a cypher expert at the Russian Legation, offers to decode German cyphers received before the war; offer refused Collection Area: India Office Records and Private Papers Languages: English Date Range: 12 Jan 1920-20 Jan 1920 Extent: 1 file