TIME |
See the National Parks Postage Stamps That Caused a Scandal
TIME As the Smithsonian explains, this sheet of 1934 Yellowstone Park stamps is special because it's “imperforate.” In other words, there are no perforations around the individual stamps. There's also no glue on the back. In fact, they're not really meant … New National Park Service stamps unveiled in Pullman Stamps depict 16 different parks ILLINOIS — Stamp dedication set at Chicago's Pullman National Monument |
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