September 16, 2008
NEWPORT, UNITED KINGDOM - A worker at AJ Wells and Sons prepares London Underground ''roundel' ' signs on September 15, 2008 in Newport on the Isle of Wight, England. The famous circular symbol of the London Underground was first used in 1908. AJ Wells and sons have been manufacturing eight different types signs for 16 years. The vitreous enamel metal signs are made in a complicated process of silk screening and 5 seperate firings in a furnace at temperatures up to 830 degrees centigrade. (Photo by Peter Macdiarmid/Getty Images)