This trio belongs to the Famous Americans commemorative series, issued by the United States starting in 1940 to honor distinguished figures in American arts and sciences.

• 1¢ Green – Stephen Collins Foster: Celebrates the 19th-century composer of classic American songs such as Oh! Susanna and Camptown Races.

• 2¢ Carmine – John Philip Sousa: Honors the renowned "March King," composer of patriotic marches including The Stars and Stripes Forever.

• 3¢ Violet – Augustus Saint-Gaudens: Features the celebrated sculptor, best known for designing the $20 Saint-Gaudens gold coin, often called the most beautiful U.S. coin.

These stamps are engraved with rich detail, each showing a portrait within an ornamental frame, symbolizing America’s cultural and artistic heritage. A highly collectible series, it holds great appeal for both thematic and U.S. philatelists.