Quarter Deck Cocktail

Ingredients:
1 & 1/2 fluid ounces or 4.45 centilitres of White Rum
1/3 a fluid ounce or 1 centilitre of Cream Sherry
Juice of 1/2 Lime
1/3 a fluid ounce or 1 centilitre of Cream Sherry
Juice of 1/2 Lime
Instructions:
Stir with ice, strain into a cocktail glass, and serve.
