Ah, lads.

A slice of cake from the 1981 wedding of Prince Charles and Diana Spencer will be sold at auction at the start of next month. The forty-year old slice of cake was given to Moyra Smith, who was a member of Queen Elizabeth's household at Clarence House. Ms Smith kept the slice wrapped in cling film in a cake tin. On top of the box, she labelled and dated it, and wrote "Handle with care." The cake, which is made mostly of icing and marzipan, still has the intricate topping in tact. The topping showcases the British coat of arms in gold, white, silver, red and blue icing. The slice is expected to fetch at least €600 when it goes on sale at Dominic Winter's Books, Maps, Prints, Documents, Ephemera  Auction on 11 August. Commenting on the condition the cake is in, Chris Albury, a senior valuer at Dominic Winter Auctioneers, said: "It appears to be in exactly the same good condition as when originally sold, but we advise eating against it." Tomorrow marks the 40th anniversary of Charles and Diana's wedding. Over 750 million people around the world tuned in to watch the two tie the knot on 29 July 1981. 11 years later, the couple separated and subsequently divorced in 1996.