books, and taken to Blue Chip redemption stores." He also said, "When I was told that even certain brothels and mortuaries gave stamps to their patrons, I felt I had finally found a sure thing." Sales dropped to $19.4million in 1980 and $1.5million in 1990. In 2006, revenues came in at $25,920. Acquisitions On January 3, 1972, Blue Chip obtained a controlling interest in See's Candies. Blue Chip later acquired 100 percent of See's for an overall price of $25million. Wesco Financial Corporation was an 80.1 percent owned subsidiary of Blue Chip Stamps until its complete merger into Berkshire Hathaway in 2011. See also References External links Berkshire Hathaway Customer loyalty programs Cinderella stamps