Found this 6oz. bottle by a water line dirt pile next to the sidewalk. I've walked by it for 3 days now, I figured its not worth anything being is sat there untouched. I know nothing about bottles, but I never seen a flat sided soda bottle before, so I picked it up and brought it home. Says patented November 27, 1923 on the bottom above the D. I think I'll just set it on my workbench.