Well okay I know it's a cannon, but it's a right old one. It's got a very high lead content, is at least forty years old likely more. It bears a "Made in England" mark (Hurrah!) and is a spring firing beauty with a range of over six foot. It's around three inches long and one high.
Here's a few photos of it;
I'd really like to know who made it, and how rare it might be, especially in it's unpainted state.