Dating old glass bottles
Dating old glass bottles - problem updating firmware for nec nd 2510a
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.
Recycling was very common until the mid-20th century.
This, and no mould seams, is another indication of a handblown bottle.
A pontil rod held the nearly molten bottle during the final stages of manufacture.
The picture to the lower right is a close-up of finish of the Mission bottle.
It shows that the side mold seam does go up to and through the finish/lip all the way to the top of the bottle.
This page provides some examples of how to use the website (primarily the Bottle Dating pages) to determine the approximate date or date range for various types of bottles made between the early 1800s and the mid-20th century.
The bottles used for illustration are a small but diverse assortment designed to give users guidance on how to work a bottle through the dating information to answer the Homepage's primary question #1 - What is the age of the bottle?
The Owens machine revolutionised the bottle industry.
Check for lack of bubbles and uniform glass thickness.
) to the specific dating questions on the Bottle Dating page are included so that a user can reference the necessary portions of that page.
Each of the green question hyperlinks result in a pop-up page showing the particular question on the Dating Page; once read it should be deleted to avoid clutter.
Bill Lindsey's fantastic bottle identification and information site.