Check the listing for details. Spirit of 76 - Set of 3 Vintage Stamps 47 Years Old!. Condition: New. Listed at 4.99 USD. This product is a set of three vintage stamps that are reproductions of the Spirit of 76 design. The stamps are 47 years old and feature the Revolutionary War (1775-83) as their conflict theme. The stamps were manufactured in the United States and have not been modified. They are collectibles and fall under the Militaria and Revolutionary War (1775-83) categories, as well as Reenactment & Reproductions.