I searched the internet and only came across one other is a collection. The site described it as Corning Ware A-3-CP Picnic Cooler. Uses the A-3-B / 3 Quart Casserole dish. Please do your own research but please ask for any additional photos.
The outer paper band has some stains and fading and the glue no longer sticks. Please feel free to make offers! The item "Extremely Rare Corning Ware A-3-CP Picnic Cooler Set Blue Cornflower Pattern" is in sale since Thursday, November 12, 2020. This item is in the category "Pottery & Glass\Glass\Glassware\Kitchen Glassware\Corning Ware, Corelle". The seller is "pigport101" and is located in Jacksonville, Florida. This item can be shipped to United States.