Olympic stamps issued by Vietnam are on display during the launching ceremony of Volume 3 of the "Official Worldwide Postage Stamp Collection for the Games of the XXIX Olympiad" in Beijing July 15, 2008. The 3rd volume of a four-set collection, which is authorised by both International Olympic Committee (IOC) and Beijing Organising Committee of Olympic Games (BOCOG), was launched on Monday in Beijing. The collection brings together the thematic stamps from more than 120 countries and regions to support the success of the 2008 Beijing Olympic Games. (Agencies)