Color postcard showing drawings of Kellogg advertising characters surrounding an inset photo of the London, Ontario Kellogg Company factory. Caption on front: "The Best to You Each Morning!" from Kellogg's Caption on back: Kellogg Company of Canada Limited London, Ontario Kellogg's is the world's largest manufacturer of ready-to-eat cereals with plants throughout the world. Kellogg's has been bringing "The best to you each morning" for over 50 years. Kellogg's the Greatest Name in Cereals.