This is one of the rarest and most difficult to find pins from the London 2012 Olympic and Paralympic Games.
Is a LOCOG internal issue pin , #LOC0035, these were awarded to young sports people aged between 16 and 18 during the Olympics,and assisted adult gamesmakers , ball-boys and girls at Wimbledon etc,
This available along with the original backing card, the metal pin clasps were removed and replaced with rubber pin backs