cathrineholm of norway 1956. grete prytz kittelsen. CATHRINE series. royal blue. stainless steel. ø 20 cm. available in a large variety of colors. most commonly red, orange, yellow, white, royal blue, light blue, light green, beige, brown and black. exists in a variety of sizes: 10, 14, 18, 20, (22), 24 and 28 cm.