Dating vintage bottles online dating love tips
But any technique, once developed, can be used right up to the present - as many collectors know who have been so unfortunate as to rely too heavily on a popular termination date as sure evidence of true antiquity..." (Toulouse 1969b).In short, there was (and is) nothing to stop a glassmaker from using an obsolete method in the production of a bottle.3.Check for lack of bubbles and uniform glass thickness.This is another indication of a machine-made bottle. Most bottles with embossed lettering date from the late 19th century and later. Keep in mind that older technology often persisted and some bottles date later than you might think.A pontil rod held the nearly molten bottle during the final stages of manufacture.The scar was left when the pontil was detached from the bottle. If the seams disappear in the neck, the bottle was probably "blown-in-mold" and dates circa 1820 to early 1900s.Recycling was very common until the mid-20th century.The lettering “Federal Law Forbids Sale or Reuse of This Bottle” indicates a liquor bottle made from 1935 to the 1960s. Having written extensively on North American archaeology and material culture, he has contributed to various archaeological journals and publications.
Of course, soda & beer were reused up until quite recently.Dating antique bottles requires knowledge of the evolution of bottle technology and the ability to research manufacturers and bottling companies.