I found a quart Absolutely Pure Milk bottle on our property in Colorado. The bottle has a green tint. There is no valve/ejection mark and no factory marking on the bottom. Nor is there a capacity or volume of contents marked on the bottle. The spacing of the letters is not uniform. For example, there is a big space between the letters l and u in the word Absolutely. Can anyone tell me the approximate date of the bottle or if it might be a repo?