Vintage UNIQUE Set of 4 Primary Colors and similar items

These are a set of 4 Primary colors Storage / Refridgerator dishes containers made by Beacon. Made in USA. Marked at the Bottom. They are from the 1950s. They were made along the same lines as Pyrex. They are plastic containers. Have been used. Each container measures 3 5/8 inch tall and features a textured design on each side. A clear plastic lid on top lightly secures to keep its contents inside. 3 lids are in great condition and 1 lis has a small chip on the corner. See picture. The blue and red containers are in good condition. The yellow container has a slight crack on the rim. I have highlighted it in the picture. It is not very visible. The green one has a long crack. See picture. All containers can be used. Please see pictures. They are a part of the description. These are very unique and hard to find. Please email me with any questions or concerns. Thanks for looking.