We bought stock in AT&T Corp. from 1975 to 1983 and our financial advisor said we should sell the stock and diversify. When we went to do our taxes or accountant said we need to know what we paid for the stocks during those years or we will have to pay capital gains on the amount of the cashed stock. We have tried to find info on the stock prices for those years 1975-1983 on the internet but have found nothing. If anyone knows where to find the info that would be great!