Bill Waters was antique shopping in Texas and found a ledger that may contain the original formula for Dr Pepper.

It isn’t a recipe for a soft drink, says Greg Artkop, a spokesman for the Plano-based Dr Pepper Snapple Group. He said it’s likely instead a recipe for a bitter digestive that bears the Dr Pepper name.

He said the recipe certainly bears no resemblance to any Dr Pepper recipes the company knows of. The drink’s 23-flavor blend is a closely guarded secret, only known by three Dr Pepper employees, he said.

How much you wanna bet those three aren’t allowed to travel anywhere together?