A great case study demonstrating the longevity of vitreous enamel signage can be found at London’s Elephant & Castle underpass. The wayfinding signage was originally manufactured by A.J Wells around twenty years ago. The photographs show the excellent condition of the vitreous enamel after revisiting the site in November 2010. Note that the stainless steel surround (not supplied by A.J Wells) has fared less well.