"Heritage Porcelain Signs" are reproductions of antique signs found throughout Europe. Not only will they add beauty and charm to your home, our signs are made to stand the test of time. The decorative frames are made from solid die-cast aluminum, and finished with our special powder coating process to prevent corrosion. The number plates are constructed of heavy gauge steel with a thick porcelain enamel coating. Your numbers and artwork are applied by hand, then fired in our kilns to produce a piece of fine art that will not warp, chip or fade in direct sunlight. "Heritage Porcelain Signs" are guaranteed against corrosion or defect for twenty years.