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Dating bottles seams, the seam method - of dating of glass bottles

THE SEAM METHOD - OF DATING OF GLASS BOTTLES

How to Date Coke Bottles 15 Ways to Tell if that Iconic Bottle Has Value

Dating bottles by their seams

By the midth century, embossed lettering and marking on bottle bodies and bases, denoting manufacturers and products, made more precise dating possible. Also, the format and space constraints of a journal article do not allow for the elaboration and illustrations necessary to make a key function fully Jones b. This will be noted where known.

No material may be copied for commercial purposes. Any brand tries to protect its products against imitators, who may damage a company's interests if they operate on a large enough scale. Unfortunately, the complexities of precisely dating bottles is beyond the scope of any simple key. With the uniformity, came the possibility to create a solid seal with a screw cap. They are noted on the other website pages which expand on the information summarized in the key.

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So many companies are not yet explored. Blown-in-mold bottles without pontil marks date circa s to s. The disk-like mark is sometimes confused with a pontil.

How to Date Antique Glass Bottles

  1. The the lower left corner you can see evidence of the diagonal mold seam which at one time bisected the base.
  2. Many identical shapes persisted through time and others were brought back for nostalgia and made common again.
  3. One unique closure to the late s was a three point screw top.
  4. The middle picture shows an open pontil on the base of a cylindrical medicine bottle.

So, to identify Coke bottles, a simple study would not help. Is embossed lettering present? Warning Do not estimate a bottle's age by its shape. Is the base indented with an irregular to round pontil scar? Return to the top of this page.

Spencerian script is used in the logo of Coke bottles with red and white colors. This, and no mold seams, is another indication of a hand-blown bottle. Is a pontil mark present along with disappearing side mold seams? The closer to the top of the bottle the seams extend, the more recent was the production of the bottle.

DATING BOTTLES BY THEIR TOPS AND BASES

Dating Bottles by Color Is the bottle machine made and aqua- or light green in color? The author has also seen Star Bitters labels on Wait's bottles as well as both labels on the immensely period popular Hostetter's Stomach Bitters bottles! How to Identify Old Bottles. Also, dating Root Coke bottles will have heel numbers.

The base of the second bottle whose lip was shown above right is displayed here. Having shared happiness with the help of their products for more than years, the brand has employed various symbols. How to Identify Genuine Antique Decanters.

The warning messages include words like not to be sold, to be returned, loaned etc. 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 is the base of the bottle whose lip is shown above left.

Dating Your Old Bottles

Note the diagonal line which cuts across the base is obliterated by the Owens Ring the large off-center curcular feature. This will be shallower, muslim wider and more perfectly circular than a pontil mark. There is frequent hyper-linking between the diagnostic characteristics and terminology listed on this page and other website pages. Turn-mold bottle body showing faint concentric rings. The Owens ring again covers the entire base and even intrudes out to the side of the bottle slightly.

BOTTLE MOLDS AND SEAM DATING

Is the bottle machine made and aqua- or light green in color? Both of these medicine bottles look much like their earlier counterparts. Asymmetry is an indication of a hand-blown bottle. Please be aware that in order to gain the maximum information about any particular bottle e.

Notice also how unlike most pontil marks, the Owens ring covers the whole base of this bottle. People assume that the city label on glass bottles specify the place where they are manufactured, but it is a misconception. In the center of the Owens Ring the Owens mark is shown the diamond. Sometimes, kimberly hahn dating and authorities print these warnings and you should be aware about these.

Dating Antique Bottles

  • Keep in mind that older technology often persisted and some bottles date later than you might think.
  • That is the point of this website.
  • The picture to the left shows both of these mold seams click to enlarge.
  • Close up of iron pontil Close up of an open pontil milk base for comparison.
  • Viewers are encouraged, for personal or classroom use, to download limited copies of posted material.

In addition to technology, products and manufacturers, certain types of glass colors will also aid in dating. All this adds to the fascination with bottle making, but makes systematic dating similar to solving Rubik's cube - ostensibly simple on the surface but complex in practice. Click Mouth-blown Bottles to move to the portion of the Dating key for Mouth-blown bottles new webpage. They will also have other machine-made characteristics as described on the Machine-made Bottles page. Also, over the years, there had been differences in branding the bottles.

Published works generally cover either a particular city, region, or category of bottles. Bottles issued by certain plants will show symbol of Coco-Cola on the base of the glass bottles. Thousands of people ask Digger questions about their bottles.

Dating bottles by their seams

The best the following key can do is get a user to a reliably close dating range estimate. Many specialty bottles were imported from Europe, though that fact may be at times hard to impossible to ascertain. 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. This entire website is essentially a key to the dating and typing of bottles. These bottles will not have the side mold seam proceeding from the upper finish side over and onto the rim itself.

Vertical side mold seam on the neck of a beer bottle ending well below the finish, indicating that it was at least partially handmade - ca. All turn-mold bottles are round in cross section and unless stained, will usually have a polished looking sheen to the glass surface. All of the bottle mouths shown below were machine made. Likewise, good first dating the Coke manufacturer also took out patents for some aspects that can help you identify them.

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