US Commemorative Plate Blocks MNH – Einstein, Tea Party, Copernicus + More

Lot of U.S. commemorative 8¢ stamp plate blocks from the 1970s. All are mint, never hinged (MNH) with full gum, corner margins, and visible plate numbers. Includes: •Einstein, Copernicus, and Emily Dickinson •Boston Tea Party bicentennial •Stamp Collecting & Antarctic Treaty issues •Historic Preservation and Colonial Craftsmen •Harry Truman and military generals •Sharp color, no bends or heavy marks Perfect for collectors, history buffs, educators, or resale in themed bundles.