The 2021 stamp program commemorates Missouri statehood, Japanese Americans who fought in World War II and Chien-Shiung Wu, one of the most influential American nuclear physicists of the 20th century. Fun issuances include Western Wear, Backyard Games, Espresso Drinks, a stamp showcasing a visual riddle, and four Message Monster stamps with self-adhesive accessories. The program also includes Mid-Atlantic Lighthouses, the last of the popular Lighthouse stamp series..." Source: goldrushcam.com
The 2021 stamp program commemorates Missouri statehood, Japanese Americans who fought in World War II and Chien-Shiung Wu, one of the most influential American nuclear physicists of the 20th century. Fun issuances include Western Wear, Backyard Games, Espresso Drinks, a stamp showcasing a visual riddle, and four Message Monster stamps with self-adhesive accessories. The program also includes Mid-Atlantic Lighthouses, the last of the popular Lighthouse stamp series..." 