This red and white mixer is marked on the cast iron base \"LITTLE DEB MIXER MAKER NORTHWESTERN PRODUCTS CO. ST. LOUIS 3, MO.\" The whole mixer appears to be cast metal, not tin. On one side of the mixer is the turn handle to turn the mixer round and round. On the other is a little switch which goes to High, Medium, or Low then OFF. Only make believe it is. As you can see the electric cord is a piece of cording with a block of wood for the plug. It comes with a red bowl. Based on the Postal Zone in the address, I judge this to be from the 50s.