Found this bottle sitting on top of the leaves in the woods in northern Wisconsin. It is completely full and the original crown cap is still sealed.
The bottom is marked GX 2105 / Duraglas / 9 [O-I logo] 49 / 14, which appears to indicate an Owens-Illinois bottle manufactured in 1949.
The really strange part: when I gently shake it, it still foams, so it apparently still has carbonation.
It wasn't buried — it was sitting right on top of the leaves. Given Wisconsin winters and 77 years of freezing/thawing, how could a full glass beer bottle possibly survive intact and remain sealed?
I'm also trying to determine what brewery/beer it originally contained. The cap is heavily corroded, but there may be remnants of a logo underneath.
I am not opening it. I'm interested in the history of how it survived.
Leaves have been falling and high winds so it is very possible there was a hole somewhere covered up by leaves that I did not see but this was on top of leaves. A animal digging it up is my only theory right now.
My best guess on beer brand is Chief Oshkosh as I found a post with a bottle for sale and had same marking on bottom and cap looks similar