I recently used the above image in connection with a story about the British Parliament. That image is the offical symbol for that parliament.
Some interesting trivia about the image:
• The image and thereby the emblem is of a portcullis, from the French "porte coulissante" or gliding door. Those who recall Errol Flynn or Kevin Costner as Robin Hood, or Kirk Douglas as Einar in The Vikings, or a myriad other movies of English castles being attacked, will recognise that a portcullis is the metal gate that is raised upwards by metal chains. In such movies the rope or chain holding up the portcullis is usually cut by the hero, trapping the villains and enabling the hero to make his getaway.

