58mm ( 2 and 1/4 inches in old money ) diameter graphic on this traditional button badge with safety pin (built in) for fixing on reverse. The end of an incredible series was perhaps the best episode! the bitter sweet final episode had it all. You probably know the scene... orders have been given to go over the top and Blackadder uses the tried and tested 'underpants, pencils and WIBBLE method' to save him being a part of that push - alas on this occasion it wasn't to be as darling said in the same episode... simply bugger