Tank Cocktail

Ingredients:
1 & 1/2 fluid ounces or 4.45 centilitres of Tanqueray Gin
1 & 1/2 fluid ounces or 4.45 centilitres of Jack Daniel's Whiskey
1 & 1/2 fluid ounces or 4.45 centilitres of Jack Daniel's Whiskey
Instructions:
Shake with ice and strain into a lowball glass.
