wcarley I have not found these vials on any collectable sites. I'm guessing they are snap off injection vials. Maybe opium or morphine? Recovered during a dig in 1967 near Panama Canal. Any thoughts? Wcarley
historic Hi You are on the mark - these were, as I understand it, opium vials. Yours appear to be square bodied, but they also have chamfered or indented corners. Some have Chinese characters embossed in the base.