Duraglas bottles dating - Machine Made Bottles Dating Key - Society for Historical.


    One unique closure to the late 1930s was a three point screw top.  Unlike most screw caps, the three point screw top had three lugs jutting out from the lip which were to engage a metal cap.  This closure can be found on Whisky and medicine bottles of the 1837-1940 period.


Duraglas bottles dating

Duraglas bottles dating