Circa 1938- 1944. This example with the red lid was chosen for the 1940s Fiesta Kitchen Kraft promotional campaign. The Refrigerator Set was the final item offered in the campaign. This example includes a red lid with yellow, original green and coblat blue stacking units. Modified from unproduced designs for the Jewel Tea company, the stacking units are wonderfully thick walled, straight sides and fully glazed bottoms- all pieces of the set included hand working on the jiggering machines. All pieces in this set are in wonderful condition The red lid is delightfully scratch free and all the units have great shine, bold glazes and wonderful surfaces.