Prompt
                                        
                                            "Create an image of a historic document, specifically the Anglo-Irish Treaty, signed on 6 December 1921 in London, with representatives from the United Kingdom and the Irish Republic, leading to the establishment of the Irish Free State and marked by significant terms including Dominion status for Ireland, Oath of Allegiance to the British Crown, and partition of Ireland, in a formal, vintage style, with the British and Irish flags in the background."