Here are a cpl medical bottles I have dug up. I am getting better at cleaning them up I think. What works best for the lime scale, soaking in vinegar?? Anyhow The aqua blue is a Lydia E. Pinkhhams Medicine, the other reads Koenig Med. Co. Reads Chicago on the backside. No markings on the bottom of the Koenig, Lydia bottle has a triangle with at W over a T. I am including a picture of a glass stopper I found also. I found this in the vicinity of the Pinkhams bottle. I was just wondering if you bottle ppl might think they go together. The stopper fits well on the bottle, but not snug. I would assume they were more decorative than functional anyhow. I would think a tight seal with a glass stopper would be hard to acheive. I am sitting here debating on the I before E thing. I thought the stopper was attractive with its thousands of little bubbles. I am going to walk the creek outside town possibly tomorrow. I will let you know if anything turns up, have a good one all.