The 2022 USPS Shel Silverstein Forever Stamp Sheet of 20 Collectible Stamps is a highly sought-after product for collectors of non-sport trading cards. Manufactured by USPS in the United States, these stamps feature the iconic character Shel Silverstein and are part of the USPS franchise. Each stamp is a First Class stamp, adding to its value and collectability. With a total of 20 stamps in a sheet, this product is a must-have for any collector looking to add a unique and special piece to their collection.