Question: How do you date an Atlas jar?

How do you date a Hazel-Atlas jar?

When checking the name to date your jar, you want to look at two names. These are “Atlas” or “Atlas Mason”. Older jars made by the Hazel-Atlas company had the Atlas name on them, while newer models of the jar had the Atlas Mason name on them.

How do you date a jar?

So if you have some old jars, how do you know their true age? If you have a Ball jar, you can date most of them just by looking at the logo. Every few years, the Ball Manufacturing Co changed the logo and if you compare yours to a reliable chart, you know how old it is.

What does the number on the bottom of a blue mason jar mean?

Many Ball mason jars have a number printed on the bottom of the jar, but this is a mold number that does not indicate the year of production. Rather, the mold number tells you where the jar was positioned on the glass-making machine that was used to produce it.

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