Ion Jinga, Romania's new ambassador to the United Kingdom, showed Her Majety Queen Elizabeth II his accreditation letters last Friday. After the ceremony at Buckingham Palace, the new official offered the "vin d'honneur" in Belgrave Square, a building belonging to Romania since 1930. The event was attended by officials from the Foreign Office in Britain and ambassadors of EU and NATO states. Ion Jinga, formerly a Romanian ambassador in Brussels, was appointed an ambassdor in London last February. (L.P.)