Hello! I am a librarian at UNO Criss Library and a patron is looking for specific stock information for Tiffany & Co. Your catalog shows that
Thank you for contacting us! I'll cover the fine details and provide some contact info in another email, but while I can furnish the relevant entry from the Directory of Obsolete Securities I wonder if it's the right tool for this particular research request. The DOS is reasonably useful for tracking major events in the life cycle of a stock - like what happened when a company dissolved, or in Tiffany's case when they issued or exchanged capital stock for common stock, or changed ownership. Just from your description, it sounds like your patron may be looking for historical spot prices instead. My favorite tool for that kind of search is Yahoo! Finance, believe it or not, and it appears they have full info for Tiffany & Co. from late 1987 to the present.
Criss Library has some subscriptions that are more robust than ours - while we have Value Line, if I remember correctly you folks have S&P NetAdvantage and ABI/Inform, which may have some additional resources to offer your patron. Especially if - as I'm guessing - they're looking at what happened with the company during their purchase by Avon and other mgmt groups between '79 and '87?
If your patron isn't opposed to some dusty research, we've also got a fairly dense collection of old financial periodicals that might help to fill in gaps in the '70s - they're welcome to visit us at the W. Dale Clark library, browse and collect monthly data from old S&P stock guides.
Thanks again for using AskOPL!