Dating old milk bottle
Dating old milk bottle - ten rules for dating my son
All of the bottle mouths shown below were machine made.
In the center of the Owens Ring the Owens mark is shown the diamond.The base of the second bottle whose lip was shown above right is displayed here.The the lower left corner you can see evidence of the diagonal mold seam which at one time bisected the base.Beginning collectors often confuse an Owen's ring with a pontil mark and it is easy to see why this happens.The pictures below are from two early machine made medicine bottles.The disk-like mark is sometimes confused with a pontil.
the pontil is actually broken glass where the metal rod used to hold the bottle while the lip was form was broken off leaving a sharp scar.The middle picture shows an open pontil on the base of a cylindrical medicine bottle.The third picture shows the base of a milk bottle from just after the trun of the century.Note the diagonal line which cuts across the base is obliterated by the Owens Ring (the large off-center curcular feature). the base is crudely made for a machine made bottle.Owens' early bottles were often cruder than their hand blown hand tooled counterparts.Slowly the corked top bottle began to disappear in favor of the screw top.