original and largely intact single-sided porcelain enameled die cut steel "metallic" company advertising sign or plaque manufactured by or for the metallic products co., houston, tx. the bold lettering resembles corrugated steel housed under a slightly pitched top. the metallic products company manufactured accessory items for the steel building industry, including ridge vents, wall louvers, roof curbs, and other specialty items. the porcelain enameled finish remains largely intact with slight wear around the edges. measures approximately 16 x 6 1/2 inches.