Tags: Non-Profit Organisation.
The United States Stamp Society (USSS) is the largest philatelic organization dedicated to the research and study of United States postage and revenue stamps. The Society is a non-profit collector-based organization with a world-wide membership of over 1700. The USSS is Affiliate #150 the American Philatelic Society (APS). Since 1930 the Society has encouraged philatelic study through voluntary membership in specialized committees.