EMBARGOED TO 2200 BST FRIDAY APRIL 28 Detail of an eagle on top of the anointing screen, which will be used in the coronation of King Charles III, as it stands in the Chapel Royal at St James's Palace in London. The most important moment in the coronation is the "unction", the sacred act of anointing a monarch with holy oil, which can be traced as far back as the 7th and 8th centuries, and signals that the monarch has been chosen by God. It is only seen by the sovereign and the Archbishop of Canterbury and will take place behind the anointing screen. Picture date: Monday April 24, 2023.