Abstract: A copy of a letter from Henry Willock, HM Chargé d’Affaires in Persia [Iran], to George Canning, Secretary of State for Foreign Affairs, sent from Tabriz and dated 27 December 1823.The letter concerns efforts by Persian and Russian commissioners to survey and delineate the border between the two countries in the Caucasus.The letter was enclosed in Willock’s letter to the Secret Committee of the Court of Directors of the East India Company dated 8 January 1824 (IOR/L/PS/9/69/140).Physical description: 1 item (2 folios)