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Specializing in Revenue stamps including unusual cancellations by companies such as Coca-Cola, American Express, Moxie Nerve Food, Vass Chemical and Alligator Liniment.
http://www.battleship-revenues.com/
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Devoted to the collecting of worldwide revenue stamps, this site showcases a reference collection of U.S. 1st-3rd series revenues, as well as subscription information for Global Stamp News and Forbin's Catalogue de Timbres-Fiscaux.
http://www.revenue-collector.com
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