Fifteen thousand pounds for this revolver. I could think of better things to buy with my money and a gun isn't one of them. As an feat of workmanship it must be remarkable especially if it duplicates the Python action and works in both single action and in double action mode.
http://metro.co.uk/2015/04/22/worlds-smallest-gun-sold-for-300k-and-its-shorter-than-a-matchstick-5161255/