The nine bottles date back to the opening of the distillery in 2015. All of them were aged in a virgin American oak barrel at 63.5 per cent ABV.

After six years of ageing, the “pure and unadulterated” rum now has a strength of 66.3 per cent.

Managing director Jim Ewen said: “It’s a milestone moment for us to see our inaugural aged rum come to auction and we couldn’t be happier with the results which went beyond our expectations.

“It is fantastic to see the international interest in what we are doing here in Scotland. The diversity in rum is incredible and it’s an honour for our young distillery to have received such an enthusiastic reception from rum enthusiasts around the world.

“This is just the beginning of our journey and given the increasing interest in rum, we are very excited to see how Dark Matter grows in the coming years.”