While most promotional items were featured as stand-alone items sold for a short duration the popular Blue Stripe pattern was offered as two different casserole sets.
Blue Stripe, unofficially known as “Barcode,” was available in the 470 three-piece Bake, Serve and Store Set as well as the 480 three-piece Cinderella Casserole Set. The 470 set included the one-pint Cinderella Casserole (471), the 1 ½ pint Cinderella Casserole (472) and the one-quart Cinderella Casserole (473). The 480 set included the one-quart Cinderella Casserole (473), the 1 ½ quart Cinderella Casserole (474) and the 2 ½ quart Cinderella Casserole (475).
Blue Stripe has a deep blue background with light blue stripes that mimic a barcode around the entirety of the dish. While Blue Stripe was the most readily available version of this pattern, other color variations exist with the barcode design.
Corning Glass Works offered its first patterned opalware gift set in 1953 when the Heinz Baking Dish was sold in grocery stores. Widespread distribution of promotional patterns occurred after the overwhelming success of the 1956 release of seasonal “decorator casseroles.” Using existing Pyrex shapes, gift sets featured new patterns offered for a limited production time. They often came with mounters, cradles, or candlewarmers and were advertised in the spring to appeal to Mother’s Day and summer wedding shoppers and in the fall to give the holiday gift-buyers something new. Corning continued to produce gift sets through 1983, creating nearly 135 different gift set patterns during that time. Corning intended these pieces to be sold for a limited time, and directed retailers to remove older, unsold promotions from the shelves.
Often, patterns used for these gift items were unnamed, or given names descriptive of the dish’s purpose, like “chip and dip set.” Collectors over the years have assigned names more reflective of the specific pattern.