I have an almost identical bottle, same dimensions as yours and it appears, from your pics, that there are three or four elongated bubbles in the same general area. The seam touches the lip and the glass disk at the bottom of the bottle. This is in my son's collection of bottles that he left here for me to dispose of. There is some of the label remaining that has deteriorated over the years so that no printing can be deciphered. There is a raised marking on the very bottom of the bottle which looks lik two BB shot side by side. I believe when he first got this bottle (I think late 80's) the partial label was in better shape and I think it had contained olives. The glass is completely clear tho.