|
William J Kozersky, Philatelist Philatelist and dealer in collectible Charity Seals, Charity Seal Literature, Stamp Collecting Supplies, Stamp Albums, and Album pages. Plus, Stamp Packets, Postcards, USPS Souvenir Pages, and Collectible Labels.
|
| U.S. Christmas Seal Printer's Proofs: Printer's Proofs are trial impressions from a die or printing plate before actual stamp production. Proofs are made to examine a die or plate for defects and to compare the results of different inks. In many cases the proofs were used as advance samples. All are identified with catalog numbers from the Green's Catalog. We have identified and cataloged the following printer's proofs: |
