1956 Women's magazines -- Soon after World War II many wringer washers were replaced with new automatic washing machines. As the market grew, many companies entered the business with their own brand of automatic washing machines. Notice the line "the makers of 25 automatics recommend Tide. There are far fewer manufacturers today. Many of those early brands such as the Dexter Automatic with Stablitron Principle did not survive. This ad also shows one of the best ways we devised to get consumers to try Tide. We put a box of Tide in every new automatic washer. This advertising was referred to in the trade as co-op advertising. Both the product and the washer were featured.