The U.S. Postal Service announced Monday that a new Purple Heart Medal Forever stamp will be dedicated and will go on sale nationwide Oct. 4.

A stamp dedication ceremony will be held at INDYPEX, a show for stamp collectors in Indiana.

The Purple Heart is awarded to members of the U.S. military who have been wounded or killed in action. According to the Military Order of the Purple Heart, an organization for combat-wounded veterans, the medal is “the oldest military decoration in the world in present use and the first award made available to a common soldier.”

The Purple Heart Medal 2019 stamp is a redesign that features a purple border matching the purple of the medal and its ribbon.

The Purple Heart Medal 2019 stamp is being issued as a Forever stamp in self-adhesive sheets of 20. Customers may purchase stamps and other philatelic products through The Postal Store at usps.com/shop, by calling 800-STAMP24 (800-782-6724), by mail through USA Philatelic or at Post Office locations nationwide.