Are there imperfections to the glass? Any bubbles in it? It's so dark my old eyes can't tell. Also, is there any chipping inside the mouth of the bottle? Is it threaded for a cap? Again, I can't see it well enough to tell. With bottles like this it could really go either way. A resurgence in the old style jugs and what not has been pretty common the last decade, therefore many modern bottles are made to look old. Where did you find it? This could possibly give us a clue.