Dating antique glass bottles, dating bottles by their tops and bases

Antique Glass Bottles

Hi Eileen, You have found an antique glass battery jar. Dating antique bottles requires knowledge of the evolution of bottle technology and the ability to research manufacturers and bottling companies. Some glass factories switched over to machine production much sooner than others, often depending on their financial situation. On some glass items the mark is rather indistinct. The pictures below are from two early machine made medicine bottles.



Carol, I am assuming it is a soda bottle. And great work on the site, there is so much information here! Author reserves the right to update this information as appropriate. Star Glass Works star on base of A.

Dating Your Old Bottles

Hello Aj, Thank you very much for the good words about this site, and the advisory! Wish I could post a pic to show the makers mark. Please see my webpage on numbers on the bottom of bottles. Return back to this page by closing the Bottle Morphology page. These bottles will not have the side mold seam proceeding from the upper finish side over and onto the rim itself.

Val, international dating forum I have no information on the bottle. The son decided that their entire shed filled with approx. Do the mold seams go all the way from the base to the lip?

Put your cell phone down and pick up a shovel or metal detector! We have tried to define the distinction between these two classes of bottles from the perspective of the intent of and information found on this website. Thousands of people ask Digger questions about their bottles. This is another indication of a machine-made bottle.

Sometimes they are filled with coins or other objects. Because of this I am going to have to stop answering all but questions of the very widest interest to the collecting public. On the bottom, it has crown emblem with a Trade W mark in the middle. Hello Thank you for all the great information!

How to Date Antique Glass Bottles

  1. It has been increasingly more difficult to keep up with answering emails and posts concerning glass bottle markings and related information.
  2. What type of bottle is it?
  3. The food and household product industries on the other hand widely adopted the screw cap quickly.
  4. Perhaps a reader will recognize what brand or company this represents.
  5. It appears correctly when looking down into the glass.
  6. Begging for help here, found a small glass bottle in a wash at Yuma Proving Ground, Arizona.

This page also shows how other portions of this website can provide information pertinent to the bottle in question. Return to the top of this page. No material may be copied for commercial purposes. For the most part, I have not attempted to list fine distinctions for marks that are found both with and without periods. What technology, techniques, online best or processes were used to manufacture the bottle?

Antique Glass Bottles

Glass Bottle Marks Glass Manufacturers Marks

How to Date Antique Glass Bottles

Having stated the above, there are still many diagnostic features or characteristics that provide a high probability of both dating and typing a bottle with some precision. Dating Bottles by Color Is the bottle machine made and aqua- or light green in color? When a dating sequence dead ends, it will be noted and other website pages suggested and hyperlinked for the user to consult. There are many purple glass bottles showing up on ebay and other internet sites, as well as local flea markets and antique malls around the United States.

Antique Glass Bottles


Both are hard questions to answer and the answer is somewhat arbitrary in the end. That is the point of this website. Because of the volume of emails I receive, I may or may not respond to questions about marks not listed here. It is a very nice piece and would like to know more about it. Any help with this makers mark would be greatly appreciated.


  • The title of any given page gives the predominant theme of that page and would be the first place to start when pursuing information on that particular subject.
  • Before jumping into the key, it must again be emphasized that no single key can get a user to an absolutely precise date for any bottle.
  • The pressure from the automatic machine was strong and the molds fit tight leaving only a very thin line.

Hi Hilary, did you ever find out who is the maker of your bottle with the two deer logo? Chambers, Pittsburgh, Pennsylvania c. Do not estimate a bottle's age by its shape. Does the bottle appear light purple in color?


Unidentified B O C mark on base of amber handmade beer bottle. Is embossed lettering present? Where did the bottle come from, i. These two manufacturing types can be hard to differentiate from each other, though free-blown bottles are almost always round or oval in cross-section and have lines that are not sharp i.

In the s, the bottle mimicked early forms which were hand tooled and sealed with a cork. The jar you are describing sounds like it might be a salve jar, alternative dating sites london or perhaps it held one of any number of different kinds of pharmaceutical products. Is a pontil mark present along with disappearing side mold seams?

This site uses Akismet to reduce spam. This website will help you determine what to look for when identifying and dating historic bottles. My address is listed on the bottom right-hand corner of the page. For this website the distinction between the two categories is related to the varying time frames that different glass making techniques were used for for the two classes of bottles. This, and no mold seams, is another indication of a hand-blown bottle.

Dating Antique Bottles

We are using cookies to give you the best experience on our website. Yes, extramarital dating it would have had a paper label on the side. Hopefully someone may have more info for you.

The the lower left corner you can see evidence of the diagonal mold seam which at one time bisected the base. The color is that of a rich extra olive oil green. What is a utilitarian bottle or jar? How to Identify Perfume Bottles. Is the base indented with an irregular to round pontil scar?

Dating Antique Bottles

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