Question: Where can I find info on obsolete securities?
Go to the Virtual Business Library's Company & Financial Information section for links to useful resources including the following suggested resources.
IntelliConnect: Select Capital Changes in the Content section and search by the company name. Capital Changes covers complete capital change histories of over 58¸000 corporations and spans 100 years.
Mergent Events Data: Provides information on companies that no longer operate. Go to Corporate Actions and search by an Issuer or by a specific event such as acquisition, liquidation, etc.
You may want to consult The Library of Congress Business Reference Service, Guide to Business History Resources, Obsolete Securities.