Too much credit and honour! I would have loved to be the designer of the so called Margrethe bowls but I was only seven when Acton Bjorn and (Count) Sigvard Bernadotte designed them for Rosti. (1950) Rosti asked me to re-design the bowls to make them easier to produce eand to lower the number of sizes by finding out exactly what people used. That was in 1981 ad those were called the tip&mix bowls because of there innovating way of sitting in a ring rather than having a rubber base….but, and in spite of the dozens and dozens of copies of the Margrethe. This last one is still the most succesful mixing bowl ever….Rolf Fahrenholz (one of the tw founders and the Ro in Rosti…the sti comes from his partner Stig Jorgensen) mentioned to me that there should be a third name in the list of designers. Bjorn and Bernadotte did not include a rubber ring in the base in the original design. When Sonny Klingert the sales manager at Rosti started to sell them in Germany the Dr Oetker company became their distributor. But Dr Oetker passed all it’s products through real life tests. Formica or Arborite kitchen surfaces was the newest thing in the early fifties especially in countries where much had to be rebuild after the war. It made these melamine/phenol surfaces very popular but…the melamine of the bowls on the melamine of the kitchen surface made for a slippery combination so they requested a rubber ring. The moulds were subsequently changed with an additional rim to retain the rubber ring. Those with a keen eye for form will recognize which sizes have been changed with an additional ring on the outside and which ones are on the inside of the original shape. Anyway I did not design them and I did not design the Tip&mix in 1975 but in 1981. So if you would correct this I would very much appreciate and if you would like a picture of the Tip&mix…it was designed in Canada..I will gladly send you one.