Holy cola! Dr Pepper recipe out of the can? : "Poking through antiques stores while traveling through the Texas Panhandle, Bill Waters stumbled across a tattered old ledger book filled with formulas.
He bought it for $200, suspecting he could resell it for five times that. Turns out, his inkling about the book's value was more spot on than he knew. The Tulsa, Okla., man eventually discovered the book came from the Waco, Texas, drugstore where Dr Pepper was invented and includes a recipe titled 'D Peppers Pepsin Bitters.'"