Aerial Beer Delivery By Spitfire

It appears that Amazon was not the first to consider aerial delivery of products, although this instance required a human pilot.  Retronaut posted this item about a method used to deliver beer to ground troops after D-Day in World War II.  A Mk IX Spitfire was modified to carry wooden beer kegs, and a quick flight up to a cold altitude would refresh the beer.  Gives a new meaning to the term "beer run."