Rum blending house Charles Merser & Co. hails from the Hayman family (yes, the same folks behind Hayman's Gin), and is London's first rum blending house in over a century! The rum itself is distilled in the Caribbean, but is blended in London. In keeping with the traditions set by London's merchant blending houses of the 17th, 18th and 19th centuries, there's no sugar or colouring to be seen here, just good old fashioned rum rested in oak.
The bottle represents more than meets the eye too, with the dimpled bottle representing the River Thames on which rum was transported, while the hound and post logo is a little nod to the days when most Londoners couldn't read, and would follow symbols to find their way to merchant houses. On that note, Merser literally means 'merchant' in Old English.