- Certificate Collector - - A non-commercial site with a collection of over 500 antique stocks and bonds. Includes detailed images and research.
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- Coxrail.com - - Huge central reference on American Railroads and their thousands of individual stock certificates.
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- Guide to Business History Resources - - A Guide to Finding Business Information at the Library of Congress (Business Reference Services; Science, Technology, and Business Division.
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- Real Stock Histories - - Researching resource for old company and industry histories. Useful for scripophily researchers and other historians.
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- WHACO - - A service organization for collectors of historic autographs, stocks, bonds, certificates, and scripophily related items. Provides auction prices realized to members.
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