Read the stamp

Atlas jar dating

Atlas jar dating depends on the ATLAS logo, secondary wording and manufacturer mark; a small base number is not an automatic year.

H-over-A and jar wording

The H-over-A device is associated with Hazel-Atlas, while ATLAS MASON or other wording identifies the jar line. Keep the trademark apart from mould or capacity numbers and from a later removable lid.

What to check next

Photograph the side embossing, base and closure together. Compare the exact brand and wording with the manufacturer’s jar types. A patent date or a numbered mould can recur on jars made over several years.

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