The Six Grapes symbol originated in the nineteenth century. Following each harvest, Graham’s winemakers would mark each barrel of port using grape symbols to rate the quality of the wine from one to six. The image of six grapes on a barrel meant the wine inside had Vintage Port potential. It indicated complexity, structure, and balance. By the early 1900’s, Graham’s started bottling wine selected from these barrels under the Six Grapes label. Over a century later, Six Grapes continues to be Graham’s signature reserve port.