Looks star trekky to me . My guess is that it was made in the 1940's or maybe a bit later. If you can the remains of some old houses, often they would trhow trash into the outhouses. If you dig around, you may find soil littered with bits of glass or of a different color. Dig down a ways and see if you hit ash or traces of rust or other debris. Some people use a long piece of thin steel like a thing rod and push it into the ground as they walk around. If there is an old dump or outhouse site, it will sink in a lot faster. Have fun. I got to dig in the 1970's about 20 years after the bottle digging craze kicked in. In my area, we were still finding small dumps and a few huge multi acre areas that were the original city dumps and some were 5 - 10 feet deep and a few spots maybe 20 feet deep of untouched dump. We even used ladders or a bucket tied to a rope to remove the dirt when we got that deep. Even coming behind the first wave, we still found great stuff. I am in Washington State so we didn't have the really cool dumps like they had back east with colonial glass bottles but we still found great bottles from the 1880's and newer.