The maple leaf has long been recognized as a symbol of Canada both nationally and internationally. Her Majesty Queen Elizabeth's dress, known as the "Maple Leaf of Canada dress", has a beautiful garland of maple leaves mingled with white roses (the emblem of the House of York). Each leaf is made of green velvet appliquéd with crystal and imitation emeralds. The white roses are formed with crystals, imitation white pearls, and imitation diamonds. The dress was designed by Norman Hartnell, the Queen's couturier. Her Majesty wore the dress at the state banquet and reception at Rideau Hall, the Governor General's official residence, on October 14, 1957.