Green medicinal injection bottle

Found in Texas, in my backyard, it has a metal (possibly aluminum) top that appears machine pressed on and an indent on the bottom near the side. No other markings. The inside of the bottles bottom is irregular thickness, being thinner at the indention. Photos attached. Any information would be greatly appreciated.


  • It does have faint seams and an underlined 12 on the bottom. So, I have found that it is probably machine made and the 12 is the mold number.

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