This is an original rare enamel porcelain sign from circa 1930. The sign reads, "Use Parker Quink Reg. T.M. Made in U.S.A. Contains Solo-X Protects Your Pen." The sign is the rare blue and black advertising (rare coloring). The piece has some enamel loss across the corners and an area in the center, otherwise a good rare collectible sign. Measures 9.25"x18.25"