Looks VERY interesting. Does it have base marking? It reminds me of ink, mucilage, or perhaps blacking / shoe polish. I believe I have never seen that exact form before. Jim
Unfortunately there's no markings. It may be earlier than I think. The seam stops about half inch on one side and a quarter inch on the other. The tooling is crude, and the lip is flared out.
I found it in Schulenburg, Texas. It was from a dump in town that was unearthed during construction.
That is a truly unique shape, I love it! Is it pontiled?The only Triple Ringed Neck bottle I can find is this Pepper Sauce, LINK, and a bunch of different decanters.I agree, Mucilage or Ink, possibly Shoe Polish.