William J Kozersky, Philatelist |
1921 U.S. Christmas Seal Sheets: Issued 1921 by the National Tuberculosis Association (NTA). The 1921 U.S. National Christmas Seals were designed by George V. Curtis. All U.S. Christmas Seal Sheets are identified by both Green's Part 1 Catalog and Scott Catalog numbers. We have identified and cataloged the following sheets: |