Black Krenit pan from the 1950s

Height 4 cm. Diameter 25/27 cm. without and with handle. Herbert Krenchel developed krenit, the material on the outside of the original Krenit bowls from the 1950s. The Krenit bowl was designed in 1953, came in 7 sizes and at least 6 colors. The pan is in good condition with a few traces of use and a small flaw at the bottom. It has a glossy exterior.