The Scott Postage Stamp Catalogue app enables mobile device viewing of the Scott Postage Stamp eCatalogues. Internet access is required to view the eCatalogues. You will need a free ScottOnline account to sign in.

Scott Postage Stamp Catalogue is the #1 resource for identifying and valuing U.S. and worldwide postage stamps.

The six-volume Scott Standard Postage Stamp Catalogue provides detailed listings and annually updated values for postage stamps released throughout the world. The Scott Specialized Catalogue of U.S. Stamps and Covers is the indispensable reference work used by collectors of U.S. postage stamps. The Scott Classic Specialized Catalogue of Stamps and Covers 1840-1940 is recognized as the premier reference work for identifying and valuing classic worldwide stamps and covers.