ANSWER It's a Vintage Tupperware Coaster Set! Earl S. Tupper began experimenting with plastics in 1938 and by 1945 had produced his first tumbler. Tupperware Home Parties was formed in 1951 to sell products through dealers using a party plan. This set of Tupperware Wagon Wheel coasters are in unused condition and still sealed in their original packaging. The coasters are 3" across. The caddy measures 3 3/4" long, about 3 1/8" wide and 1 1/2" tall. . The patent for the coaster set was issued in 1966. A perfect set for your retro home! Credit: rubylane.com Check Out this Vintage Tupperware Coaster Set!