http://www.rockislandauction.com/viewitem/aid/1025/lid/4415

Ethan Allen was a very prolific gun manufacturer in the US, being involved with a series of different companies. This particular rifle of his appealed to me because it is an excellent example of how many different clever elements can be in something as simple and pedestrian as a single shot rifle. This particular one also happens to have a rather handsome brass frame - check it out: