Duck stamps are used for hunting licenses, passes to wilderness refuges, and the support of wetland preservation. Federal Migratory Bird Hunting and Conservation Stamps are the original duck stamps and have been produced since the 1930s. This is a collection of 22 of these popular stamps with years ranging from the 1940’s to the 1980’s and totaling more than $500 in value in the latest stamp (Brookman) guide. (mixed condition)