Duraglas... if it is written it dates from 1945 to 1960. If it is printed, it dates from 1960 on. Would I save it. Yes, but I wouldn't display it. I would place it in my storage of common bottles.
Thanks for the information everyone. The word Duraglas is in writing or cursive so it must date pre 50's. The dairy is "Wilkinson Dairy" Riverside, (must be Riverside CA).