While hiking in the woods today I came across this little glass piece. It is only 1 3/4" at its widest point and 1 1/4" at the opening, which appears to accept a screw on lid of some sort. My first guess is it's from a mini oil lamp but I'd like to hear what some others think.
Yeah I'd tend to agree with Leon on this one, although it does look close to those mini oil lamps the opening being so wide suggests that you're supposed to be able to get something out with your finger. All the pictures of mini oil lamps that I can find online show thinner and taller mouths than the one on yours.