Atlas canning jar dating, items in search results
Beware of very strong colors which may indicate a reproduction or irradiated glass. Earlier may have distortions in the glass.
Skip jars marked Atlas Mason which are likely produced by a new Atlas company and not of value to collectors. Workers would have hand-tooled the lip into shape after the lower part of the jar was blown into the mold.
Colors are usually blue-green or aqua, or clear. An embossed design that is unusual or unique will fetch more than the embossing on a jar. Some patterns were also made in cobalt blue and, in a few cases, amethyst. The absence of a mold seam on the lip indicates the jar was finished by hand.
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Hazel-Atlas Glass Company were in business from the late s until This allowed re-use of old canning jars together with inexpensive and easy to use disposable lids. The E-Z Seal is a lightening jar, a design which has a distinctive glass bubble lid or stopper clamped to the jar with a wire bail.
Chart of Hazel-Atlas base codes on containers, courtesy of fruitjar. The E-Z Seal is a lightning jar, a design which has a distinctive glass bubble lid or stopper clamped to the jar with a wire bail. Workers would have hand-tooled the lip into shape after the lower part of the jar was blown into the mold.
Look for identifying characteristics. Colored jars were considered better for canning use, as they block some light from reaching the food, which helps to retain flavor and nutritional value longer.
Sometimes you can find a jar that has a word misspelled and mishaps like this make the jar rarer and add to the value. Take note of any dates or other information on the jars.
Although other companies began creating the jars, Mason held the patent, and so the style of jar became known as a Mason jar. Many of the Hazel-Atlas containers I have seen do not conform exactly to this chart, but this might be of some help in interpreting the markings on some of their products.
I never pay more than a couple of bucks for mine. John Mason was a tinsmith in New York and perfected a machine that would cut threads into the lids, creating a jar with a reusable, screw-on lid. Later machine-made examples are more uniform.
Many reproduction companies list the same date or model number on jars that have been produced over several decades.
When in doubt, check eBay for comps. Kerr Jars InAlexander H.
The Atlas Strong Shoulder Mason has heavier glass below the jar neck to prevent it from cracking easily. The absence of a mold seam on the lip indicates the jar was finished by hand.
I keep them on my kitchen counter, with coffee, Splenda, and sugar in them. Originally the brothers manufactured wood-jacketed tin cans for the storage of oil, lard and paints, but when John L.
I am always looking for extra zinc lids to go with the ones I have bought sans lid. If you have a Ball jar, you can date most of them just by looking at the logo.