In 1857 the firm was renamed Gosling Brothers by Ambrose’s sons. Three years later the first oak barrels of rum distillate arrived in Bermuda. Three years later, after much trial and error, the distinctive Bermuda black rum destined to be Black Seal was formulated and offered for sale. In fact, up until the First World War it was only sold from the barrel, and most folks brought in their own bottles for a “fill up”. Eventually the black rum was sold in champagne bottles, reclaimed from the British Officer’s Mess, and the corks sealed with black sealing wax.