Cathrineholm was the name of a factory outside of Halden, Norway. They produced these iconic enamelware pieces from the mid-1950's through to the late 1960's. The Lotus pattern is what I collect and is the most iconic and sought after by collectors like myself. The Lotus patten design was created by Arne Clausen in 1962. It is simple and easily recognized as Cathrineholm's best selling pattern.