Flag of the Lord Warden of the Cinque Ports, a traditional UK senior appointment. Note that this image shows the particular flag of Admiral Lord Boyce - the badge in the flag's hoist changes with the appointment of a new Lord Warden. Admiral Lord Boyce was preceded in post by Her Majesty Queen Elizabeth the Queen Mother, who used the same flag but with her Royal Cypher as the badge in the hoist.

The main part of the flag includes the famous front halves of lions joined to rear halves of ships, associated with the heraldry of the Cinque Ports and originally created by heraldic dimidiation.
Own work by en:User:GrahamPadruig
Originally uploaded to the English language Wikipedia by GrahamPadruig on 16 December 2007 (log).