Poster stamps like these (see also: Dump Lindsay) are precursors to modern stickers. Although carrying no monetary value, conservative activists would often affix them to letters, postcards, and flyers as a way of advocating their causes.
This example showcases two of the most common icons that conservatives used to evoke American pride: the United States flag and the Statue of Liberty. In this ca se, the flagpole doubles as a spear, piercing the communist “snake within our borders” as the Statue of Liberty towers above it, visually suggesting the power of the United States to defeat its enemies.