Question: How do you identify Mason jars?

Locating Other Identifying Marks. Look for Christmas lettering. Ball mason jars with Christmas lettering have a unique design that doesnt use their original printed or their traditional cursive lettering. Instead, the lettering is calligraphy, and the jar reads “Masons Patent.”

How do you tell what year a Mason jar is?

Some helpful notes to keep in mind:Not every jar has their manufacture date on the glass, but most have the patent date. There will be a large number on the bottom of your jar. These charts tell you the approximate decade in which your Ball jar was made.More items •Aug 16, 2021

How do you identify glass jars?

Many bottles carry only a number (or numbers) on the base. These marks often served as some type of mold identification, indicating a particular mold used by a glass factory. If a number of identical molds were produced for making a certain type of bottle, they would often be serially numbered (such as 1 to 12).

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