Well seeing as I'd made a large one and a medium one of this design, its only right to make a small one I suppose :) here it is finished,  although having a long lever arm on such a small key does make it a bit unstable where the base rocks, so I have cut a nice piece of stone to add a bit of weight, making a very small key is fun but a bit hard on the fingers and eyeballs, so I just make one now and again :() it has a really fine action for such a small key I'm very pleased with it.