Dating atlas e z seal jars members contact for 2016 dating

In the United States, however, a variety of canning jars began appearing in the late 1840s.

While stoneware crocks were used for many things, they did not enable the homemaker to seal the container securely and so the contents were always at risk.

Anchor Hocking Glass Corporation used an “Anchor logo superimposed over an H” or an “Anchor inside a rectangle”.

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During 1940s and '50s, the company was one of the largest producers of canning jars along with competitors Ball and Kerr. Only a few types of Atlas jars are collectible: the Atlas E-Z Seal, Atlas H over A Mason, and the Atlas Strong Shoulder Mason. Beware of very strong colors which may indicate a reproduction or irradiated glass. The Atlas Strong Shoulder Mason has heavier glass below the jar neck to prevent it from cracking easily.

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. The absence of a mold seam on the lip indicates the jar was finished by hand.

The “H over a smaller A” is probably the second most-commonly seen manufacturer’s mark on glass containers found in typical bottle dumps / trash deposits of the early 1920s to the late 1950s or very early 1960s period, behind the ubiquitous Owens-Illinois mark (i.e.

the Diamond and oval superimposed with an I in the center).

While canning jars have been around for a long time, it wasn’t until 1858 that the screw-on lid was created.

Prior to that time, flat tin lids were attached to the jars with wax rings.

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.

This process was easier and more reliable than the tin lid and wax method.

Take note of any dates or other information on the jars.

The Hazel-Atlas company was in business from 1902 to 1964.

Apparently you can use Mason jars to make centerpieces and glassware at your wedding, layered salads, lighting fixtures, air fresheners, flower vases, soap dispensers…