Mark, It's not the Ethan Allen gun shown in the earlier post. It is definitely a different version. If you are interested I can try to help you find parts, but it'll be hard without it in my hands obviously. Your best bet would be to go to your next local gun show and find someone who specializes in antique pistols like that. There will be a guy, there always is..... The way it woud have worked is there would be a button on the bottom of the frame under the barrel, when you push the button, the barrel would pivot to load or unload it, they you had to pull back the hammer. it's single action only. A friend of mine had a similar one years ago, and they are neat little guns to play with as far as plinking cans goes. It's the kind of project I love. I just took on a new project gun, a bit newer, made in 1901, (todays find post) and I love fixing them up when possible.....