William J Kozersky, Philatelist |
U.S. Easter Charity Seals: U.S. Easter Seals were first issued in 1934 by the National Society for Crippled Children. Various issues are identified by Printer's Marks (pm) from 1938-61, and Union Labels (UL) from 1962-present. U.S. Easter Seals are identified by Mosbaugh's Catalog Sec. 9A catalog numbers. We also stock Posters, Buttons, and Bookmarks. History |