1. IOR/L/PJ/6/1719, File 8426 Reference (shelfmark): IOR/L/PJ/6/1719, File 8426 Title: File 8426 - Option for Polish citizenship as stipulated in the last paragraph of Article 91 of the Peace Treaty of Versailles, 1919 Collection Area: India Office Records and Private Papers Languages: English Date Range: Dec 1920 Extent: 1 file