Scott Postage Stamp Catalogs
Scott Stamp Catalogs are preferred by collectors as their principle source for identifying and valuing stamps, both worldwide and U.S. issues. Scott catalog numbers are used to identify stamps when buying, selling, or trading. The Scott Stamp Catalog lists stamps from every country with useful information, including the issue date, the process used to print the stamp, the perforation, and a unique Scott catalogue number.
SCOTT CATALOGUE OF ERRORS ON US POSTAGE STAMPS The 16th edition of the Scott Catalogue of Errors on U.... more info