Celebrate the historic Golden Spike Centennial with this collection of 99 original gum poster stamps. These multi-color stamps feature famous historical figures and were machine cancelled for authenticity. Though ungraded and uncertified, these stamps are a must-have for any stamp collector interested in United States history. The stamps were produced in the United States and are categorized under 1941-Now: Unused and Stamps. Add this unique piece of history to your collection today!