The product is a vintage 1956 calendar card advertisement from the Standard Oil Company. Measuring 3 1/2" x 2 1/4", this plastic planner is a unique piece of office supplies from the mid-20th century. The calendar year and brand are prominent features, making it a valuable collectible for those interested in business and industrial history.  See all photos.  I will ship upon receipt of funds.  Thanks for viewing my store.