Standard jars, made from 1895 to 1912, featured a mouth groove that held a metal lid, which was then secured with sealing wax.
Wire-bail closures, in which the glass lid was attached to the jar, were introduced in 1898, and were sealed with a tin-plated lid. Two-piece metal closures with jar rubbers–a rubber gasket to help sealing–appeared in 1934.
I’ll be sure to let you know when I’m adding something new to the shop!
Remember when the mason jar was actually a breakthrough in the American way of life?
In 1955, the modern two-piece metal vacuum caps that include a rubber-gasket component on the outer edge of a flat disk lid were introduced.
Look for a patent date, which is not the date of manufacture but rather the date of the jar’s patent application. Many Sure Seal jars have “PAT’D JULY 14, 1908” near the bottom, and many jars from the Perfection line include the dates of April 10, 1900 or April 26, 1907 near the base.
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The script style was that of a cursive Ball with an extra loop at the end, known as “3-L” Ball jars.
They also continued to make the MASON’S PATENT NOV 30th 1858 jars (machine made smooth lipped varieties) up into the early 1900’s.
I’ve never seen any quite like this before, so I brought them home.
The jars that I found have what is known as the “triple L”. This site, West Saint Paul Antiques, has wonderful information on dating fruit jars if you would like to find out more about an old jar you may have!
The very first machine made Ball jar is not positively known, but most likely was either a Ball STANDARD or a Ball IMPROVED MASON. Ball produced many jars with this script style, the Ball MASON jars and ones with just Ball and no other embossing appeared right about the turn of the century.