This is the new Military Working Dogs Booklet of 20.

In 2019, the U.S. Postal Service® honors the nation’s brave and loyal military working dogs. Each of the four stamps features a stylized geometric digital illustration of one of four of the canine breeds—German shepherd, Labrador retriever, Belgian Malinois, and Dutch shepherd—that commonly serve in America’s armed forces.

Military Working Dogs stamp is being issued as a Forever® stamp. This Forever stamp will always be equal in value to the current First-Class Mail® one-ounce price.